TrustCo Bank Corp NY (TRST) 10-Q 5 Nov 21 2021 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Oct. 31, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Document Transition Report	false
Entity File Number	0-10592
Entity Registrant Name	TRUSTCO BANK CORP NY
Entity Central Index Key	0000357301
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	14-1630287
Entity Address, Address Line One	5 SARNOWSKI DRIVE
Entity Address, City or Town	GLENVILLE
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	12302
City Area Code	518
Local Phone Number	377-3311
Title of 12(b) Security	Common Stock, $1.00 par value
Trading Symbol	TRST
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		19,218,501

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest and dividend income:
Interest and fees on loans		$ 39,488	$ 41,330	$ 119,513	$ 125,058
Interest and dividends on securities available for sale:
U. S. government sponsored enterprises		91	14	238	541
State and political subdivisions		1	1	2	4
Mortgage-backed securities and collateralized mortgage obligations		1,038	1,319	3,442	4,959
Corporate bonds		220	646	859	1,372
Small Business Administration-guaranteed participation securities		181	216	580	690
Other securities		5	5	16	16
Total interest and dividends on securities available for sale		1,536	2,201	5,137	7,582
Interest on held to maturity securities:
Mortgage-backed securities and collateralized mortgage obligations-residential		104	138	338	475
Total interest on held to maturity securities		104	138	338	475
Federal Reserve Bank and Federal Home Loan Bank stock		64	77	198	351
Interest on federal funds sold and other short-term investments		470	242	1,026	1,702
Total interest income		41,662	43,988	126,212	135,168
Interest on deposits:
Interest-bearing checking		38	55	136	97
Savings accounts		154	161	475	560
Money market deposit accounts		202	637	721	2,595
Time deposits		1,149	4,749	4,076	16,739
Interest on short-term borrowings		232	221	688	778
Total interest expense		1,775	5,823	6,096	20,769
Net interest income		39,887	38,165	120,116	114,399
(Credit) Provision for loan losses		(2,800)	1,000	(2,450)	5,000
Net interest income after provision for loan losses		42,687	37,165	122,566	109,399
Noninterest income:
Trustco financial services income		1,558	1,784	5,592	4,752
Fees for services to customers		2,531	2,292	7,221	6,414
Net gain on securities transactions	[1]	0	0	0	1,155
Other		206	265	598	780
Total noninterest income		4,295	4,341	13,411	13,101
Noninterest expenses:
Salaries and employee benefits		11,909	10,899	36,737	33,920
Net occupancy expense		4,259	4,277	13,173	12,968
Equipment expense		1,628	1,607	4,859	5,015
Professional services		1,483	1,311	4,529	3,974
Outsourced services		2,015	1,875	6,434	5,825
Advertising expense		310	305	1,213	1,394
FDIC and other insurance		746	660	2,230	1,563
Other real estate expense (income), net		32	(115)	211	47
Other		2,315	1,855	6,086	6,168
Total noninterest expenses		24,697	22,674	75,472	70,874
Income before taxes		22,285	18,832	60,505	51,626
Income taxes		5,523	4,761	15,227	12,988
Net income		$ 16,762	$ 14,071	$ 45,278	$ 38,638
Net income per share:
Basic (in dollars per share)	[2],[3]	$ 0.871	$ 0.730	$ 2.349	$ 2.002
Diluted (in dollars per share)	[2],[3]	$ 0.871	$ 0.730	$ 2.349	$ 2.001
[1]	Not within the scope of ASC 606.
[2]	All periods presented have been adjusted for the 1 for 5
[3]	Share and per share amounts have been adjusted for all periods presented for the 1 for 5

Consolidated Statements of In_2

Consolidated Statements of Income (Unaudited) (Parenthetical)	May 28, 2021
Consolidated Statements of Income (Unaudited) [Abstract]
Reverse stock split ratio	0.2

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net income	$ 16,762	$ 14,071	$ 45,278	$ 38,638
Net unrealized holding (loss) gain on securities available for sale	(765)	(267)	(5,939)	11,392
Reclassification adjustments for net gain recognized in income	0	0	0	(1,155)
Tax effect	199	69	1,534	(2,660)
Net unrealized (loss) gain on securities available for sale, net of tax	(566)	(198)	(4,405)	7,577
Amortization of net actuarial gain	(137)	(222)	(534)	(531)
Amortization of prior service cost (credit)	177	(49)	227	(147)
Tax effect	(10)	70	80	177
Amortization of net actuarial gain and prior service cost (credit) on pension and postretirement plans, net of tax	30	(201)	(227)	(501)
Other comprehensive (loss) income, net of tax	(536)	(399)	(4,632)	7,076
Comprehensive income	$ 16,226	$ 13,672	$ 40,646	$ 45,714

Consolidated Statements of Fina

Consolidated Statements of Financial Condition (Unaudited) - USD ($) $ in Thousands		Sep. 30, 2021	Dec. 31, 2020
ASSETS:
Cash and due from banks		$ 45,486	$ 47,196
Federal funds sold and other short term investments		1,147,853	1,059,903
Total cash and cash equivalents		1,193,339	1,107,099
Securities available for sale		434,552	439,071
Held to maturity securities ($11,646 and $14,988 fair value at September 30, 2021 and December 31, 2020, respectively)		10,701	13,824
Federal Reserve Bank and Federal Home Loan Bank stock		5,604	5,506
Loans, net of deferred net costs		4,396,729	4,244,470
Less: Allowance for loan losses		47,350	49,595
Net loans		4,349,379	4,194,875
Bank premises and equipment, net		33,233	34,412
Operating lease right-of-use assets		45,836	47,885
Other assets		62,191	59,124
Total assets		6,134,835	5,901,796
Deposits:
Demand		790,663	652,756
Interest-bearing checking		1,148,593	1,086,558
Savings accounts		1,433,130	1,285,501
Money market deposit accounts		744,051	716,005
Time deposits		1,124,581	1,296,373
Total deposits		5,241,018	5,037,193
Short-term borrowings		230,770	214,755
Operating lease liabilities		50,515	52,784
Accrued expenses and other liabilities		25,849	28,903
Total liabilities		5,548,152	5,333,635
SHAREHOLDERS' EQUITY:
Capital stock par value $1; 30,000,000 shares authorized; 20,041,796 and 20,040,966 shares issued, and 19,216,101 and 19,286,531 shares outstanding at September 30, 2021 and December 31, 2020, respectively	[1],[2]	20,042	20,041
Surplus	[1]	256,565	256,606
Undivided profits		339,554	313,974
Accumulated other comprehensive income, net of tax		7,304	11,936
Treasury stock at cost - 825,695 and 754,435 shares at September 30, 2021 and December 31, 2020, respectively	[2]	(36,782)	(34,396)
Total shareholders' equity	[1]	586,683	568,161
Total liabilities and shareholders' equity		$ 6,134,835	$ 5,901,796
[1]	All periods presented have been adjusted for the 1 for 5
[2]	Share amounts have been adjusted for all periods presented for the 1 for 5

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) $ in Thousands	Sep. 30, 2021USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares
ASSETS:
Held to maturity securities, fair value | $	$ 11,646	$ 14,988
SHAREHOLDERS' EQUITY:
Capital stock, par value (in dollars per share) | $ / shares	$ 1	$ 1
Capital stock, shares authorized (in shares)	30,000,000	30,000,000
Capital stock, shares issued (in shares)	20,041,796	20,040,966
Capital stock, shares outstanding (in shares)	19,216,101	19,286,531
Treasury stock, at cost (in shares)	825,695	754,435

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands		Capital Stock [Member]		Surplus [Member]		Undivided Profits [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2019	[1]	$ 20,041		$ 256,591		$ 288,067	$ 4,461	$ (30,903)	$ 538,257
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		0	[1]	0	[1]	13,313	0	0	13,313
Other comprehensive income (loss), net of tax		0	[1]	0	[1]	0	6,931	0	6,931
Cash dividend declared	[2]	0	[1]	0	[1]	(6,827)	0	0	(6,827)
Purchase of treasury stock	[2]	0	[1]	0	[1]	0	0	(3,493)	(3,493)
Stock based compensation expense		0	[1]	4	[1]	0	0	0	4
Balance at Mar. 31, 2020	[1]	20,041		256,595		294,553	11,392	(34,396)	548,185
Balance at Dec. 31, 2019	[1]	20,041		256,591		288,067	4,461	(30,903)	538,257
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income									38,638
Other comprehensive income (loss), net of tax									7,076
Balance at Sep. 30, 2020	[1]	20,041		256,605		306,741	11,537	(34,396)	560,528
Balance at Mar. 31, 2020	[1]	20,041		256,595		294,553	11,392	(34,396)	548,185
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		0	[1]	0	[1]	11,254	0	0	11,254
Other comprehensive income (loss), net of tax		0	[1]	0	[1]	0	544	0	544
Cash dividend declared	[2]	0	[1]	0	[1]	(6,568)	0	0	(6,568)
Stock based compensation expense		0	[1]	6	[1]	0	0	0	6
Balance at Jun. 30, 2020	[1]	20,041		256,601		299,239	11,936	(34,396)	553,421
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		0	[1]	0	[1]	14,071	0	0	14,071
Other comprehensive income (loss), net of tax		0	[1]	0	[1]	0	(399)	0	(399)
Cash dividend declared	[2]	0	[1]	0	[1]	(6,569)	0	0	(6,569)
Stock based compensation expense		0	[1]	4	[1]	0	0	0	4
Balance at Sep. 30, 2020	[1]	20,041		256,605		306,741	11,537	(34,396)	560,528
Balance at Dec. 31, 2020	[1]	20,041		256,606		313,974	11,936	(34,396)	568,161
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		0	[1]	0	[1]	14,083	0	0	14,083
Other comprehensive income (loss), net of tax		0	[1]	0	[1]	0	(4,668)	0	(4,668)
Stock options exercised	[1]	3		68		0	0	0	71
Cash dividend declared	[2]	0	[1]	0	[1]	(6,571)	0	0	(6,571)
Purchase of treasury stock	[2]	0	[1]	0	[1]	0	0	(45)	(45)
Balance at Mar. 31, 2021	[1]	20,044		256,674		321,486	7,268	(34,441)	571,031
Balance at Dec. 31, 2020	[1]	20,041		256,606		313,974	11,936	(34,396)	568,161
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income									45,278
Other comprehensive income (loss), net of tax									(4,632)
Balance at Sep. 30, 2021	[1]	20,042		256,565		339,554	7,304	(36,782)	586,683
Balance at Mar. 31, 2021	[1]	20,044		256,674		321,486	7,268	(34,441)	571,031
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		0	[1]	0	[1]	14,433	0	0	14,433
Other comprehensive income (loss), net of tax		0	[1]	0	[1]	0	572	0	572
Cash used to settle fractional shares in the Reverse Stock Split	[1]	(5)		(195)		0	0	0	(200)
Stock options exercised	[1]	2		57		0	0	0	59
Cash dividend declared	[2]	0	[1]	0	[1]	(6,569)	0	0	(6,569)
Purchase of treasury stock	[2]	0	[1]	0	[1]	0	0	(733)	(733)
Balance at Jun. 30, 2021	[1]	20,041		256,536		329,350	7,840	(35,174)	578,593
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		0	[1]	0	[1]	16,762	0	0	16,762
Other comprehensive income (loss), net of tax		0	[1]	0	[1]	0	(536)	0	(536)
Stock options exercised		1	[1]	29	[1]	0	0	0	30
Cash dividend declared		0	[1]	0	[1]	(6,558)	0	0	(6,558)
Purchase of treasury stock		0	[1]	0	[1]	0	0	(1,608)	(1,608)
Balance at Sep. 30, 2021	[1]	$ 20,042		$ 256,565		$ 339,554	$ 7,304	$ (36,782)	$ 586,683
[1]	All periods presented have been adjusted for the 1 for 5
[2]	Share amounts and per share amounts have been adjusted for all periods presented for the 1 for 5

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical)	3 Months Ended
	Sep. 30, 2021$ / sharesshares	Jun. 30, 2021$ / sharesshares	Mar. 31, 2021$ / sharesshares	Sep. 30, 2020$ / shares	Jun. 30, 2020$ / shares	Mar. 31, 2020$ / sharesshares
Consolidated Statements of Changes in Shareholders' Equity (Unaudited) [Abstract]
Stock option exercises (in shares)	1,160	2,225	2,650
Cash dividend declared (in dollars per share) | $ / shares	$ 0.340625	$ 0.340625	$ 0.340625	$ 0.340625	$ 0.340625	$ 0.340625
Purchase of treasury stock (in shares)	50,000	20,000	1,261			97,800

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income		$ 45,278	$ 38,638
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		3,184	3,003
Amortization of right-of-use asset		4,745	4,588
Net gain on sale of other real estate owned		(86)	(332)
Writedown of other real estate owned		121	120
(Credit) Provision for loan losses		(2,450)	5,000
Deferred tax benefit		(1,247)	(1,199)
Net amortization of securities		3,113	2,703
Stock based compensation expense		0	14
Net gain on sales of securities	[1]	0	(1,155)
(Increase) decrease in taxes receivable		(463)	570
Decrease (increase) in interest receivable		673	(180)
Decrease in interest payable		(249)	(682)
Increase in other assets		(1,442)	(1,201)
Decrease in operating lease liabilities		(4,965)	(4,715)
(Decrease) increase in accrued expenses and other liabilities		(2,106)	2,734
Total adjustments		(1,172)	9,268
Net cash provided by operating activities		44,106	47,906
Cash flows from investing activities:
Proceeds from sales, paydowns and calls of securities available for sale		123,550	226,886
Proceeds from calls and maturities of held to maturity securities		3,028	3,398
Purchases of securities available for sale		(136,543)	(103,991)
Proceeds from maturities of securities available for sale		8,555	5,000
Purchases of Federal Reserve Bank and Federal Home Loan Bank stock		(98)	(380)
Proceeds from redemption of Federal Reserve Bank stock		0	4,057
Net increase in loans		(152,314)	(152,987)
Proceeds from dispositions of other real estate owned		255	1,802
Proceeds from dispositions of bank premises and equipment		6	0
Purchases of bank premises and equipment		(2,011)	(2,798)
Net cash used in investing activities		(155,572)	(19,013)
Cash flows from financing activities:
Net increase in deposits		203,825	449,034
Net increase in short-term borrowings		16,015	44,789
Proceeds from exercise of stock options		160	0
Cash used to settle fractional shares in the Reverse Stock Split		(200)	0
Purchases of treasury stock		(2,386)	(3,493)
Dividends paid		(19,708)	(19,750)
Net cash provided by financing activities		197,706	470,580
Net increase in cash and cash equivalents		86,240	499,473
Cash and cash equivalents at beginning of period		1,107,099	456,846
Cash and cash equivalents at end of period		1,193,339	956,319
Cash paid during the year for:
Interest paid		6,345	21,451
Income taxes paid		15,430	12,274
Other non cash items:
Transfer of loans to other real estate owned		260	434
(Decrease) Increase in dividends payable		(10)	214
Change in unrealized (loss) gain on securities available for sale-gross of deferred taxes		(5,939)	10,237
Change in deferred tax effect on unrealized loss (gain) on securities available for sale		1,534	(2,660)
Amortization of net actuarial gain and prior service cost (credit) on pension and postretirement plans		(307)	(678)
Change in deferred tax effect of amortization of net actuarial gain postretirement benefit plans		$ 80	$ 177
[1]	Not within the scope of ASC 606.

Financial Statement Presentatio

Financial Statement Presentation	9 Months Ended
	Sep. 30, 2021
Financial Statement Presentation [Abstract]
Financial Statement Presentation	(1) Financial Statement Presentation The unaudited Consolidated Interim Financial Statements of TrustCo Bank Corp NY (the “Company” or “TrustCo”) include the accounts of the Company’s subsidiary, Trustco Bank (also referred to as the “Bank”) and other subsidiaries after elimination of all significant intercompany accounts and transactions. Prior period amounts are reclassified when necessary to conform to the current period presentation. The net income reported for the and months ended is not necessarily indicative of the results that may be expected for the year ending , or any interim periods. These financial statements consider events that occurred through the date of filing. In the opinion of the management of the Company, the accompanying unaudited Consolidated Interim Financial Statements contain all recurring adjustments necessary to present fairly the financial position as of , the results of operations for the and months ended and , and the cash flows for the months ended and . The accompanying unaudited Consolidated Interim Financial Statements should be read in conjunction with the Company’s year-end audited Consolidated Financial Statements, including notes thereto, which are included in the Company’s Annual Report on Form -K for the year ended . The accompanying unaudited Consolidated Interim Financial Statements have been prepared in accordance with the instructions to Form -Q and, therefore, do not include all information and notes necessary for a complete presentation of financial position, results of operations and cash flow activity required in accordance with accounting principles generally accepted in the United States. Effective as of , the Company completed a 1-for-5 reverse stock split (the “Reverse Stock Split”) of the Company’s issued and outstanding shares of common stock, par value $ per share, as previously approved by our Board of Directors (the “Board of Directors”) and our shareholders. Proportional adjustments were made to the Company’s issued and outstanding common stock and to the exercise price and number of shares issuable upon exercise of the options outstanding under the Company’s equity incentive plans, and the number of shares subject to restricted stock units under the Company’s equity incentive plans. fractional shares of common stock were issued in connection with the Reverse Stock Split, and shareholders received cash in lieu of any fractional shares. All references herein to common stock and per share data for all periods presented in these unaudited consolidated interim financial statements and notes thereto, have been retrospectively adjusted to reflect the Reverse Stock Split

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Earnings Per Share	(2) Earnings Per Share The Company computes earnings per share in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 260, Earnings Per Share reconciliation of the component parts of earnings per share for the three and nine months ended September 30, 2021 and 2020 is as follows (in thousands, except per share data) For the three months ended September 30 For the nine September 30 2021 2020 2021 2020 Net income $ 16,762 14,071 $ 45,278 38,638 Weighted average common shares (1) 19,249 19,287 19,272 19,306 Stock Options (1) 3 1 6 2 Weighted average common shares including potential dilutive shares (1) 19,252 19,288 19,278 19,308 Basic EPS (1) $ 0.871 0.730 $ 2.349 2.002 Diluted EPS (1) $ 0.871 0.730 $ 2.349 2.001 (1) Share and per share amounts have been adjusted for all periods presented for the 1 for 5 For the three and nine months ended September 30, 2021 there were thousand weighted average antidilutive stock options excluded from dilutive earnings. For the three and nine months ended September 30, 2020 the weighted average antidilutive stock options excluded from dilutive earnings were approximately thousand shares. The stock options are antidilutive because the strike price is greater than the average fair value of the Company’s common stock for the periods presented

Benefit Plans

Benefit Plans	9 Months Ended
	Sep. 30, 2021
Benefit Plans [Abstract]
Benefit Plans	(3) Benefit Plans The table below outlines the components of the Company’s net periodic benefit recognized during the three and nine months ended September 30, 2021 and 2020 for its pension and other postretirement benefit plans Three months ended September 30 Pension Benefits Other Postretirement Benefits (dollars in thousands) 2021 2020 2021 2020 Service (credit) cost $ - 9 9 15 Interest cost 214 269 60 40 Expected return on plan assets (712 ) (755 ) (274 ) (296 ) Amortization of net loss (gain) - (5 ) (137 ) (217 ) Amortization of prior service cost (credit) - - 177 (49 ) Net periodic benefit $ (498 ) (482 ) (165 ) (507 ) Nine September 30 Pension Benefits Other Postretirement Benefits (dollars in thousands) 2021 2020 2021 2020 Service cost $ - 28 57 55 Interest cost 642 807 143 152 Expected return on plan assets (2,135 ) (2,265 ) (891 ) (887 ) Amortization of net loss (gain) - - (534 ) (531 ) Amortization of prior service cost (credit) - - 227 (147 ) Net periodic benefit $ (1,493 ) (1,430 ) (998 ) (1,358 ) The Company does not expect to make contributions to its pension and postretirement benefit plans in 2021. As of September 30, 2021 Since 2003, the Company has not subsidized retiree medical insurance premiums. However, it continues to provide postretirement medical benefits to a limited number of current and retired executives in accordance with the terms of their employment contracts.

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2021
Investment Securities [Abstract]
Investment Securities	(4) Investment Securities (a) Securities available for sale The amortized cost and fair value of the securities available for sale are as follows: September 30 2021 (dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. government sponsored enterprises $ 59,974 - 225 59,749 State and political subdivisions 48 - - 48 Mortgage backed securities and collateralized mortgage obligations - residential 290,508 5,095 2,018 293,585 Corporate bonds 45,914 327 326 45,915 Small Business Administration - guaranteed participation securities 33,650 919 - 34,569 Other 686 - - 686 Total Securities Available for Sale $ 430,780 6,341 2,569 434,552 December 31, 2020 (dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. government sponsored enterprises $ 20,000 - 32 19,968 State and political subdivisions 103 - - 103 Mortgage backed securities and collateralized mortgage obligations - residential 308,432 7,749 23 316,158 Corporate bonds 59,185 916 162 59,939 Small Business Administration - guaranteed participation securities 40,955 1,262 - 42,217 Other 685 1 - 686 Total securities available for sale $ 429,360 9,928 217 439,071 The following table distributes the debt securities included in the available for sale portfolio as of September 30, 2021 based on the securities’ final maturity. Actual maturities may differ because of securities prepayments and the right of certain issuers to call or prepay their obligations without penalty. Securities not due at a single maturity date are presented separately: (dollars in thousands) Amortized Cost Fair Value Due in one year or less $ 15,667 15,954 Due in one year through five years 90,946 90,435 Due after five years through ten years 9 9 Mortgage backed securities and collateralized mortgage obligations - residential 290,508 293,585 Small Business Administration - guaranteed participation securities 33,650 34,569 $ 430,780 434,552 Gross unrealized losses on securities available for sale and the related fair values aggregated by the length of time that individual securities have been in an unrealized loss position, were as follows: September 30 2021 Less than 12 months 12 months or more Total (dollars in thousands) Fair Value Gross Unrealized Loss Fair Value Gross Unrealized Loss Fair Value Gross Unrealized Loss U.S. government sponsored enterprises $ 49,760 214 9,989 11 59,749 225 Mortgage backed securities and collateralized mortgage obligations - residential 94,466 1,910 6,361 108 100,827 2,018 Corporate bonds 5,345 8 14,682 318 20,027 326 Total $ 149,571 2,132 31,032 437 180,603 2,569 December 31, 2020 Less than 12 months 12 months or more Total (dollars in thousands) Fair Value Gross Unrealized Loss Fair Value Gross Unrealized Loss Fair Value Gross Unrealized Loss U.S. government sponsored enterprises $ 19,968 32 - - 19,968 32 Mortgage backed securities and collateralized mortgage obligations - residential 19,471 22 - - 19,471 22 Corporate bonds 14,901 99 4,937 63 19,838 162 Total $ 54,340 153 4,937 63 59,277 216 The proceeds from sales and calls of securities available for sale, gross realized gains and gross realized losses from sales and calls during the three and nine months ended September 30, 2021 and 2020 are as follows: Three months ended September 30, (dollars in thousands) 2021 2020 Proceeds from sales $ - $ - Proceeds from calls/paydowns 47,100 43,052 Proceeds from maturities 3,500 - Gross realized gains - - Gross realized losses - - Nine months ended September 30, (dollars in thousands) 2021 2020 Proceeds from sales $ - $ 29,219 Proceeds from calls/paydowns 123,550 197,667 Proceeds from maturities 8,555 5,000 Gross realized gains - 1,155 Gross realized losses - - There were no transfers of securities available for sale during the three and nine months ended September 30, 2021 and 2020. (b) Held to maturity securities The amortized cost and fair value of the held to maturity securities are as follows: September 30 2021 (dollars in thousands) Amortized Cost Gross Unrecognized Gains Gross Unrecognized Losses Fair Value Mortgage backed securities and collateralized mortgage obligations - residential $ 10,701 945 - 11,646 Total held to maturity $ 10,701 945 - 11,646 December 31, 2020 (dollars in thousands) Amortized Cost Gross Unrecognized Gains Gross Unrecognized Losses Fair Value Mortgage backed securities and collateralized mortgage obligations - residential $ 13,824 1,164 - 14,988 Total held to maturity $ 13,824 1,164 - 14,988 The following table distributes the debt securities included in the (dollars in thousands) Amortized Cost Fair Value Mortgage backed securities and collateralized mortgage obligations - residential $ 10,701 11,646 $ 10,701 11,646 All held to maturity securities are held at cost on the financial statements. There were gross unrecognized losses on held to maturity securities as of September 30, 2021 and . There were no sales or transfers of held to maturity securities during the three months ended September 30, 2021 and 2020. (c) Other-Than-Temporary Impairment Management evaluates securities for other-than-temporary impairment (“OTTI”) at least on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. The investment securities portfolio is evaluated for OTTI by segregating the portfolio by type and applying the appropriate OTTI model. In determining OTTI for debt securities, management considers many factors, including: (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, (3) whether the market decline was affected by macroeconomic conditions, and (4) whether the Company has the intent to sell the debt security or more likely than not will be required to sell the debt security before its anticipated recovery. The assessment of whether any other ‑ ‑ When OTTI occurs, the amount of the OTTI recognized in earnings depends on whether management intends to sell the security or it is more likely than not it will be required to sell the security before recovery of its amortized cost basis. If management intends to sell or it is more likely than not it will be required to sell the security before recovery of its amortized cost basis, the OTTI shall be recognized in earnings equal to the entire difference between the investment’s amortized cost basis and its fair value at the balance sheet date. If management does not intend to sell the security and it is not more likely than not that the entity will be required to sell the security before recovery of its amortized cost basis, the OTTI on debt securities shall be separated into the amount representing the credit loss and the amount related to all other factors. The amount of the total OTTI related to the credit loss is determined based on the present value of cash flows expected to be collected and is recognized in earnings. The amount of the total OTTI related to other factors is recognized in other comprehensive income, net of applicable taxes. The previous amortized cost basis less the OTTI recognized in earnings becomes the new amortized cost basis of the investment. As of September 30, 2021, the Company’s security portfolio included certain securities which were in an unrealized loss position, and are discussed below. U.S. government sponsored enterprises: Unrealized losses on U.S. government sponsored enterprises are attributable to changes in interest rates, and not credit quality. Because the Company does not have the intent to sell these securities and it is likely that it will not be required to sell the securities before their anticipated recovery, the Company does not consider these securities to be other-than-temporarily impaired at September 30, 2021. Mortgage backed securities and collateralized mortgage obligations – residential: At September 30, 2021, all mortgage backed securities and collateralized mortgage obligations held by the Company were issued by U.S. government sponsored entities and agencies, primarily Ginnie Mae, Fannie Mae and Freddie Mac, institutions which the government has affirmed its commitment to support. The decline in fair value is attributable to changes in interest rates, and not credit quality. Because the Company does not have the intent to sell these securities and it is likely that it will not be required to sell the securities before their anticipated recovery, the Company does not consider these securities to be other‑than‑temporarily impaired at September 30, 2021. Corporate Bonds: At September 30, 2021, corporate bonds held by the Company are investment grade quality. The decline in fair value is attributable to changes in interest rates, and not credit quality. The the Company does not have the intent to sell these securities and it is likely that it will not be required to sell the securities before their anticipated recovery, the Company does not consider these securities to be other-than-temporarily impaired at September 30, 2021.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2021
Loans and Allowance for Loan Losses [Abstract]
Loans and Allowance for Loan Losses	(5) Loans and Allowance for Loan Losses The following table presents the recorded investment in loans by loan class: September 30, 2021 (dollars in thousands) New York and other states* Florida Total Commercial: Commercial real estate $ 147,557 20,512 168,069 Other 36,078 532 36,610 Real estate mortgage - 1 to 4 family: First mortgages 2,698,870 1,189,086 3,887,956 Home equity loans 49,492 13,837 63,329 Home equity lines of credit 177,240 54,074 231,314 Installment 7,378 2,073 9,451 Total loans, net $ 3,116,615 1,280,114 4,396,729 Less: Allowance for loan losses 47,350 Net loans $ 4,349,379 December 31, 2020 (dollars in thousands) New York and other states* Florida Total Commercial: Commercial real estate $ 148,775 18,666 167,441 Other 44,932 119 45,051 Real estate mortgage - 1 to 4 family: First mortgages 2,606,781 1,098,915 3,705,696 Home equity loans 59,400 15,071 74,471 Home equity lines of credit 193,654 48,540 242,194 Installment 7,810 1,807 9,617 Total loans, net $ 3,061,352 1,183,118 4,244,470 Less: Allowance for loan losses 49,595 Net loans $ 4,194,875 * Includes New York, New Jersey, Vermont and Massachusetts. Included in commercial loans above are Paycheck Protection Program (“PPP”) loans totaling $ million and $ million as of and , respectively. At and , the Company had approximately million in real estate construction loans at , approximately TrustCo lends in the geographic territory of its branch locations in New York, Florida, Massachusetts, New Jersey and Vermont. Although the loan portfolio is diversified, a portion of its debtors’ ability to repay depends significantly on the economic conditions prevailing in the respective geographic territory. The following table presents the recorded investment in non-accrual loans by loan class: September 30 2021 (dollars in thousands) New York and other states* Florida Total Loans in non-accrual status: Commercial: Commercial real estate $ 136 - 136 Other 40 - 40 Real estate mortgage - 1 to 4 family: First mortgages 15,000 1,894 16,894 Home equity loans 211 45 256 Home equity lines of credit 2,667 127 2,794 Installment 32 - 32 Total non-accrual loans 18,086 2,066 20,152 Restructured real estate mortgages - 1 to 4 family 19 - 19 Total nonperforming loans $ 18,105 2,066 20,171 December 31, 2020 (dollars in thousands) New York and other states* Florida Total Loans in non-accrual status: Commercial: Commercial real estate $ 372 - 372 Other 80 - 80 Real estate mortgage - 1 to 4 family: First mortgages 16,637 1,010 17,647 Home equity loans 80 47 127 Home equity lines of credit 2,662 130 2,792 Installment 43 - 43 Total non-accrual loans 19,874 1,187 21,061 Restructured real estate mortgages - 1 to 4 family 23 - 23 Total nonperforming loans $ 19,897 1,187 21,084 * Includes New York, New Jersey, Vermont and Massachusetts. The Company transfers loans to other real estate owned, at fair value less cost to sell, in the period the Company obtains physical possession of the property (through legal title or through a deed in lieu). As of and , other real estate owned included $ thousand and $ thousand of residential foreclosed properties, respectively. In addition, non-accrual residential mortgage loans that are in the process of foreclosure had a recorded investment of $ million and $ million, respectively, as of and The following tables present the aging of the recorded investment in past due loans by loan class and by region as of September 30, 2021 and December 31, 2020: The following table presents the aging of the recorded investment in past due loans by loan class and by region: September 30 2021 New York and other states*: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ 241 - 63 304 147,253 147,557 Other - - 40 40 36,038 36,078 Real estate mortgage - 1 to 4 family: First mortgages 1,802 1,160 10,447 13,409 2,685,461 2,698,870 Home equity loans - - 187 187 49,305 49,492 Home equity lines of credit 446 25 1,145 1,616 175,624 177,240 Installment 5 30 - 35 7,343 7,378 Total $ 2,494 1,215 11,882 15,591 3,101,024 3,116,615 Florida: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ - - - - 20,512 20,512 Other - - - - 532 532 Real estate mortgage - 1 to 4 family: First mortgages 482 182 1,367 2,031 1,187,055 1,189,086 Home equity loans 45 - - 45 13,792 13,837 Home equity lines of credit 186 - - 186 53,888 54,074 Installment 19 - - 19 2,054 2,073 Total $ 732 182 1,367 2,281 1,277,833 1,280,114 Total: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ 241 - 63 304 167,765 168,069 Other - - 40 40 36,570 36,610 Real estate mortgage - 1 to 4 family: First mortgages 2,284 1,342 11,814 15,440 3,872,516 3,887,956 Home equity loans 45 - 187 232 63,097 63,329 Home equity lines of credit 632 25 1,145 1,802 229,512 231,314 Installment 24 30 - 54 9,397 9,451 Total $ 3,226 1,397 13,249 17,872 4,378,857 4,396,729 * Includes New York, New Jersey, Vermont and Massachusetts. December 31, 2020 New York and other states*: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ 125 77 279 481 148,294 148,775 Other - - 80 80 44,852 44,932 Real estate mortgage - 1 to 4 family: First mortgages 1,220 982 10,927 13,129 2,593,652 2,606,781 Home equity loans 120 1 48 169 59,231 59,400 Home equity lines of credit 401 344 1,273 2,018 191,636 193,654 Installment 3 - 43 46 7,764 7,810 Total $ 1,869 1,404 12,650 15,923 3,045,429 3,061,352 Florida: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ - - - - 18,666 18,666 Other - - - - 119 119 Real estate mortgage - 1 to 4 family: First mortgages 365 517 655 1,537 1,097,378 1,098,915 Home equity loans - - 47 47 15,024 15,071 Home equity lines of credit - - - - 48,540 48,540 Installment 7 10 - 17 1,790 1,807 Total $ 372 527 702 1,601 1,181,517 1,183,118 Total: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ 125 77 279 481 166,960 167,441 Other - - 80 80 44,971 45,051 Real estate mortgage - 1 to 4 family: First mortgages 1,585 1,499 11,582 14,666 3,691,030 3,705,696 Home equity loans 120 1 95 216 74,255 74,471 Home equity lines of credit 401 344 1,273 2,018 240,176 242,194 Installment 10 10 43 63 9,554 9,617 Total $ 2,241 1,931 13,352 17,524 4,226,946 4,244,470 * Includes New York, New Jersey, Vermont and Massachusetts. At and , there were loans that were Activity in the allowance for loan losses by portfolio segment is summarized as follows: For the three months ended September 30 2021 ( dollars in s) Commercial Real Estate Mortgage- 1 to 4 Family Installment Total Balance at beginning of period $ 4,106 45,617 432 50,155 Loans charged off: New York and other states* 30 72 17 119 Florida - 1 - 1 Total loan chargeoffs 30 73 17 120 Recoveries of loans previously charged off: New York and other states* - 111 3 114 Florida - 1 - 1 Total recoveries - 112 3 115 Net loans charged off (recoveries) 30 (39 ) 14 5 (Credit) provision for loan losses (823 ) (2,003 ) 26 (2,800 ) Balance at end of period $ 3,253 43,653 444 47,350 For the three months ended September 30 2020 ( dollars in s) Commercial Real Estate Mortgage- 1 to 4 Family Installment Total Balance at beginning of period $ 4,366 43,274 504 48,144 Loans charged off: New York and other states* - 64 21 85 Florida - - - - Total loan chargeoffs - 64 21 85 Recoveries of loans previously charged off: New York and other states* 1 60 3 64 Florida - - - - Total recoveries 1 60 3 64 Net loans (recoveries) (1 ) 4 18 21 (Credit) provision for loan losses (100 ) 1,053 47 1,000 Balance at end of period $ 4,267 44,323 533 49,123 * Includes New York, New Jersey, Vermont and Massachusetts. For the nine September 30 2021 Commercial Real Estate Mortgage- 1 to 4 Family Installment Total Balance at beginning of period $ 4,140 44,950 505 49,595 Loans charged off: New York and other states* 30 178 25 233 Florida - 1 2 3 Total loan chargeoffs 30 179 27 236 Recoveries of loans previously charged off: New York and other states* 32 355 52 439 Florida - 2 - 2 Total recoveries 32 357 52 441 Net loans (recoveries) charged off (2 ) (178 ) (25 ) (205 ) (Credit) provision for loan losses (889 ) (1,475 ) (86 ) (2,450 ) Balance at end of period $ 3,253 43,653 444 47,350 For the nine September 30 2020 Commercial Real Estate Mortgage- 1 to 4 Family Installment Total Balance at beginning of period $ 3,999 39,748 570 44,317 Loans charged off: New York and other states* 3 277 77 357 Florida - - 19 19 Total loan chargeoffs 3 277 96 376 Recoveries of loans previously charged off: New York and other states* 9 160 11 180 Florida - 2 - 2 Total recoveries 9 162 11 182 Net loans charged off (recoveries) (6 ) 115 85 194 Provision for loan losses 262 4,690 48 5,000 Balance at end of period $ 4,267 44,323 533 49,123 * Includes New York, New Jersey, Vermont and Massachusetts. The Company has identified non-accrual commercial and commercial real estate loans, as well as all loans restructured under a troubled debt restructuring (“TDR”), as impaired loans. A loan is considered impaired when it is probable that the borrower will be unable to repay the loan according to the original contractual terms of the loan agreement or the loan is restructured as a TDR. The following tables present the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of September 30, 2021 and December 31, 2020: September 30 2021 (dollars in thousands) Commercial Loans 1-to-4 Family Residential Real Estate Installment Loans Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ - - - - Collectively evaluated for impairment 3,253 43,653 444 47,350 Total ending allowance balance $ 3,253 43,653 444 47,350 Loans: Individually evaluated for impairment $ 521 19,292 - 19,813 Collectively evaluated for impairment 204,158 4,163,307 9,451 4,376,916 Total ending loans balance $ 204,679 4,182,599 9,451 4,396,729 December 31, 2020 (dollars in thousands) Commercial Loans 1-to-4 Family Residential Real Estate Installment Loans Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ - - - - Collectively evaluated for impairment 4,140 44,950 505 49,595 Total ending allowance balance $ 4,140 44,950 505 49,595 Loans: Individually evaluated for impairment $ 1,028 20,553 - 21,581 Collectively evaluated for impairment 211,464 4,001,808 9,617 4,222,889 Total ending loans balance $ 212,492 4,022,361 9,617 4,244,470 A loan for which the terms have been modified, and for which the borrower is experiencing financial difficulties, is considered a TDR and is classified as impaired. TDR’s at and are measured at the present value of estimated future cash flows using the loan’s effective rate at inception or the fair value of the underlying collateral if the loan is considered collateral dependent The following tables present impaired loans by loan class as of September 30, 2021 and December 31, 2020: September 30 2021 New York and other states*: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 388 480 - 1,147 Other 40 40 - 108 Real estate mortgage - 1 to 4 family: First mortgages 14,261 14,567 - 14,070 Home equity loans 199 199 - 235 Home equity lines of credit 2,052 2,192 - 2,255 Total $ 16,940 17,478 - 17,815 Florida: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 93 93 - 105 Other - - - - Real estate mortgage - 1 to 4 family: First mortgages 2,597 2,597 - 2,563 Home equity loans - - - 15 Home equity lines of credit 183 183 - 246 Total $ 2,873 2,873 - 2,929 Total: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 481 573 - 1,252 Other 40 40 - 108 Real estate mortgage - 1 to 4 family: First mortgages 16,858 17,164 - 16,633 Home equity loans 199 199 - 250 Home equity lines of credit 2,235 2,375 - 2,501 Total $ 19,813 20,351 - 20,744 * Includes New York, New Jersey, Vermont and Massachusetts. December 31, 2020 New York and other states*: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 819 943 - 1,186 Other 111 111 - 103 Real estate mortgage - 1 to 4 family: First mortgages 15,024 15,411 - 14,110 Home equity loans 219 240 - 235 Home equity lines of credit 2,158 2,298 - 2,258 Total $ 18,331 19,003 - 17,892 Florida: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 98 98 - 105 Other - - - - Real estate mortgage - 1 to 4 family: First mortgages 2,908 2,908 - 2,555 Home equity loans - - - 16 Home equity lines of credit 244 244 - 246 Total $ 3,250 3,250 - 2,922 Total: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 917 1,041 - 1,291 Other 111 111 - 103 Real estate mortgage - 1 to 4 family: First mortgages 17,932 18,319 - 16,665 Home equity loans 219 240 - 251 Home equity lines of credit 2,402 2,542 - 2,504 Total $ 21,581 22,253 - 20,814 * Includes New York, New Jersey, Vermont and Massachusetts. The Company has not committed to lend additional amounts to customers with outstanding loans that are classified as impaired. Interest income recognized on impaired loans was not material during the and months ended and As of and impaired loans included approximately Management evaluates impairment on impaired loans on a quarterly basis. If, during this evaluation, impairment of the loan is identified, a charge off is taken at that time. As a result, as of and , based upon management’s evaluation and due to the sufficiency of charge offs taken, of the allowance for loan losses has been allocated to a specific impaired loan(s) The following table presents, by class, loans that were modified as TDR’s: Three months ended 9/30/2021 Three months ended 9/30/2020 New York and other states*: Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (dollars in thousands) Commercial: Commercial real estate - $ - - 1 $ 126 126 Real estate mortgage - 1 to 4 family: First mortgages 2 557 557 6 1,533 1,533 Home equity loans - - - - - - Home equity lines of credit 1 31 31 1 50 50 Total 3 $ 588 588 8 $ 1,709 1,709 Florida: (dollars in thousands) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial: Commercial real estate - $ - - - $ - - Real estate mortgage - 1 to 4 family: First mortgages - - - - - - Home equity loans - - - - - - Home equity lines of credit - - - - - - Total - $ - - - $ - - * Includes New York, New Jersey, Vermont and Massachusetts. Nine 9/30/2021 Nine 9/30/2020 New York and other states*: Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (dollars in thousands) Commercial: Commercial real estate - $ - - 1 $ 126 126 Real estate mortgage - 1 to 4 family: First mortgages 4 923 923 9 1,982 1,982 Home equity loans 1 2 2 - - - Home equity lines of credit 3 88 88 3 169 169 Total 8 $ 1,013 1,013 13 $ 2,277 2,277 Florida: (dollars in thousands) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial: Commercial real estate - $ - - - $ - - Real estate mortgage - 1 to 4 family: First mortgages 1 78 78 4 589 589 Home equity loans - - - - - - Home equity lines of credit - - - - - - Total 1 $ 78 78 4 $ 589 589 * Includes New York, New Jersey, Vermont and Massachusetts. The addition of these TDR’s did not have a significant impact on the allowance for loan losses. In situations where the Company considers a loan modification, management determines whether the borrower is experiencing financial difficulty by performing an evaluation of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. This evaluation is performed under the Company’s underwriting policy. Generally, the modification of the terms of loans was the result of the borrower filing for bankruptcy protection. Chapter 13 bankruptcies generally include the deferral of all past due amounts for a period of generally 60 months in accordance with the bankruptcy court order. In the case of Chapter 7 bankruptcies, as previously noted, even though there is no modification of terms, the borrowers’ debt to the Company was discharged and they did not reaffirm the debt. A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms. In situations involving a borrower filing for Chapter 13 bankruptcy protection, however, a loan is considered to be in payment default once it is 30 days contractually past due, consistent with the treatment by the bankruptcy court. The following table presents, by class, TDR’s that defaulted during the months ended and which had been modified within the last months: Three months ended 9/30/2021 Three months ended 9/30/2020 New York and other states*: Number of Contracts Recorded Investment Number of Contracts Recorded Investment (dollars in thousands) Commercial: Commercial real estate - $ - - $ - Real estate mortgage - 1 to 4 family: First mortgages - - 3 264 Home equity lines of credit - - 1 19 Total - $ - 4 $ 283 Florida: (dollars in thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial: Commercial real estate - $ - - $ - Real estate mortgage - 1 to 4 family: First mortgages - - - - Home equity loans - - - - Home equity lines of credit - - - - Total - $ - - $ - * Includes New York, New Jersey, Vermont and Massachusetts. Nine months ended 9/30/2021 Nine months ended 9/30/2020 New York and other states*: Number of Contracts Recorded Investment Number of Contracts Recorded Investment (dollars in thousands) Commercial: Commercial real estate - $ - - $ - Real estate mortgage - 1 to 4 family: First mortgages - - 4 459 Home equity loans - - - - Home equity lines of credit - - 1 19 Total - $ - 5 $ 478 Florida: (dollars in thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial: Commercial real estate - $ - - $ - Real estate mortgage - 1 to 4 family: First mortgages - - - - Home equity lines of credit - - - - - - - - Total - $ - - $ - * Includes New York, New Jersey, Vermont and Massachusetts. The TDR’s that subsequently defaulted described above did not have a material impact on the allowance for loan losses. Loan modifications and payment deferrals as a result of COVID -19 that meet the criteria established under Section 4013 of the CARES Act or under applicable interagency guidance of the federal banking regulators are excluded from evaluation of TDR classification and will continue to be reported as current during the payment deferral period. The Company’s policy as of were not material. The Company categorizes non-homogenous loans into risk categories based on relevant information about the ability of borrowers to service their debt, such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. On at least an annual basis, the Company’s loan grading process analyzes non-homogeneous loans, such as commercial and commercial real estate loans, individually by grading the loans based on credit risk. The loan grades assigned to all loan types are tested by the Company’s internal loan review department in accordance with the Company’s internal loan review policy. The Company uses the following definitions for classified loans: Special Mention Substandard Doubtful Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be “pass” rated loans. As of September 30, 2021 and December 31, 2020, and based on the most recent analysis performed, the risk category of loans by class of loans is as follows: September 30 2021 New York and other states*: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 145,400 2,157 147,557 Other 35,913 165 36,078 $ 181,313 2,322 183,635 Florida: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 19,957 555 20,512 Other 532 - 532 $ 20,489 555 21,044 Total: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 165,357 2,712 168,069 Other 36,445 165 36,610 $ 201,802 2,877 204,679 * Includes New York, New Jersey and Massachusetts. December 31, 2020 New York and other states: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 145,741 3,034 148,775 Other 44,522 410 44,932 $ 190,263 3,444 193,707 Florida: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 18,092 574 18,666 Other 119 - 119 $ 18,211 574 18,785 Total: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 163,833 3,608 167,441 Other 44,641 410 45,051 $ 208,474 4,018 212,492 * Includes New York, New Jersey and Massachusetts. Included in classified loans in the above tables are impaired loans of $297 thousand and $796 thousand at September 30, 2021 and , respectively. For homogeneous loan pools, such as residential mortgages, home equity lines of credit, and installment loans, the Company uses payment status to identify the credit risk in these loan portfolios. Payment status is reviewed on a daily basis by the Company’s collection area and on a monthly basis with respect to determining the adequacy of the allowance for loan losses. The payment status of these homogeneous pools as of and is included in the aging of the recorded investment of the past due loans table. In addition, the total nonperforming portion of these homogeneous loan pools as of and is presented in the non-accrual loans table

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2021
Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments	(6) Fair Value of Financial Instruments FASB Topic , Fair Value Measurements (“ASC ”) Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity can access as of the measurement date. Level 2 – Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 – Significant unobservable inputs that reflect a company’s own assumptions about the value that market participants would use in pricing an asset or liability. The Company used the following methods and significant assumptions to estimate the fair value of assets and liabilities: Securities Available for Sale Other Real Estate Owned Impaired Loans Indications of value for both collateral-dependent impaired loans and other real estate owned are obtained from third party providers or the Company’s internal Appraisal Department. All indications of value are reviewed for reasonableness by a member of the Appraisal Department for the assumptions and approaches utilized in the appraisal as well as the overall resulting fair value via comparison with independent data sources such as recent market data or industry-wide statistics. Assets and liabilities measured at fair value under ASC 820 on a recurring basis are summarized below: There were transfers between Level and Level during the and months ended and . Fair Value Measurements at September 30 2021 (dollars in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. government sponsored enterprises $ 59,749 $ - $ 59,749 $ - State and political subdivisions 48 - 48 - Mortgage backed securities and collateralized mortgage obligations - residential 293,585 - 293,585 - Corporate bonds 45,915 - 45,915 - Small Business Administration- guaranteed participation securities 34,569 - 34,569 - Other securities 686 - 686 - Total securities available for sale $ 434,552 $ - $ 434,552 $ - Fair Value Measurements at December 31, 2020 (dollars in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Securities available for sale: U.S. government sponsored enterprises $ 19,968 $ - $ 19,968 $ - State and political subdivisions 103 - 103 - Mortgage backed securities and collateralized mortgage obligations - residential 316,158 - 316,158 - Corporate bonds 59,939 - 59,939 - Small Business Administration- guaranteed participation securities 42,217 - 42,217 - Other securities 686 - 686 - Total securities available for sale $ 439,071 $ - $ 439,071 $ - Assets measured at fair value on a non-recurring basis are summarized below: Fair Value Measurements at September 30, 2021 Using: (dollars in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation technique Unobservable inputs Range (Weighted Average) Other real estate owned $ 511 $ - $ - $ 511 Sales comparison approach Adjustments for differences between comparable sales 3% - 21% (10 %) Impaired loans: Real estate mortgage -1 to 4 family - - - - Sales comparison Adjustments for differences between comparable sales N/A Fair Value Measurements at December 31, 2020 Using: (dollars in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation technique Unobservable inputs Range (Weighted Average) Other real estate owned $ 541 $ - $ - $ 541 Sales comparison approach Adjustments for differences between comparable sales 1% - 7% (2 %) Impaired loans: Real estate mortgage -1 to 4 family 211 - - 211 Sales comparison Adjustments for differences between comparable sales 11% - 12% (12 %) Other real estate owned, that is carried at fair value less costs to sell was approximately $ thousand at and consisted of residential real estate properties. There were commercial real estate properties. There were valuation charges of $- 0- and $121 thousand included in earnings for the months ended Of the total impaired loans of $ million at September 30, 2021 , there are impairments that are collateral dependent and are carried at fair value measured on a non-recurring basis Due to the sufficiency of charge offs taken on these loans and the adequacy of the underlying collateral, there were specific valuation allowances for these loans at September 30, 2021 . There were gross charge offs related to residential impaired loans included in the table above for the three and months ended September 30, 2021 . Other real estate owned, that is carried at fair value less costs to sell, was approximately $541 thousand at December 31, 2020 and consisted only of residential real estate properties. A valuation charge of $120 thousand is included in earnings for the year ended December 31, 2020. Of the total impaired loans of $21.6 million at December 31, 2020, $211 thousand are collateral dependent and are carried at fair value measured on a non-recurring basis. Due to the sufficiency of charge offs taken on these loans and the adequacy of the underlying collateral, there were no specific valuation allowances for these loans at December 31, 2020. Gross charge offs related to residential impaired loans included in the table above amounted to $10 thousand at December 31, 2020. In accordance with FASB Topic 825 , Financial Instruments ( ASC 825 ”), the : (dollars in thousands) Fair Value Measurements at Carrying September 30 2021 Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 1,193,339 1,193,339 - - 1,193,339 Securities available for sale 434,552 - 434,552 - 434,552 Held to maturity securities 10,701 - 11,646 - 11,646 Federal Home Loan Bank stock 5,604 N/A N/A N/A N/A Net loans 4,349,379 - - 4,419,921 4,419,921 Accrued interest receivable 9,358 37 1,042 8,279 9,358 Financial liabilities: Demand deposits 790,663 790,663 - - 790,663 Interest bearing deposits 4,450,355 3,325,774 1,123,934 - 4,449,708 Short-term borrowings 230,770 - 230,770 - 230,770 Accrued interest payable 225 30 195 - 225 (dollars in thousands) Fair Value Measurements at Carrying December 31, 2020 Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 1,107,099 1,107,099 - - 1,107,099 Securities available for sale 439,071 - 439,071 - 439,071 Held to maturity securities 13,824 - 14,988 - 14,988 Federal Reserve Bank and Federal Home Loan Bank stock 5,506 N/A N/A N/A N/A Net loans 4,194,875 - - 4,287,585 4,287,585 Accrued interest receivable 10,031 39 1,458 8,534 10,031 Financial liabilities: Demand deposits 652,756 652,756 - - 652,756 Interest bearing deposits 4,384,437 3,088,064 1,298,375 - 4,386,439 Short-term borrowings 214,755 - 214,755 - 214,755 Accrued interest payable 474 68 406 - 474

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss)	(7) Accumulated Other Comprehensive Income (Loss) The following is a summary of the accumulated other comprehensive (loss) income balances, net of tax: Three months ended 9/30/2021 (dollars in thousands) Balance at 7/1/2021 Other Comprehensive Income (loss)- Before Reclassifications Amount reclassified from Accumulated Other Comprehensive Income Other Comprehensive Income (loss)- Three months ended 9/30/2021 Balance at 9/30/2021 Net unrealized holding loss on securities available for sale, net of tax $ 3,347 (566 ) - (566 ) 2,781 Net change in overfunded position in pension and postretirement plans arising during the year, net of tax 6,084 - - - 6,084 Net change in net actuarial loss and prior service credit on pension and postretirement benefit plans, net of tax (1,591 ) - 30 30 (1,561 ) Accumulated other comprehensive income (loss), net of tax $ 7,840 (566 ) 30 (536 ) 7,304 Three months ended 9/30/2020 (dollars in thousands) Balance at 7/1/2020 Other Comprehensive Income (loss)- Before Reclassifications Amount reclassified from Accumulated Other Comprehensive Income Other Comprehensive Income (loss)- Three months ended 9/30/2020 Balance at 9/30/2020 Net unrealized holding (gain) loss on securities available for sale, net of tax $ 8,061 (198 ) - (198 ) 7,863 Net change in overfunded position in pension and postretirement plans arising during the year, net of tax 4,840 - - - 4,840 Net change in net actuarial (gain) loss and prior service cost on pension and postretirement benefit plans, net of tax (965 ) - (201 ) (201 ) (1,166 ) Accumulated other comprehensive income (loss), net of tax $ 11,936 (198 ) (201 ) (399 ) 11,537 Nine months ended 9/30/2021 (dollars in thousands) Balance at 1/1/2021 Other Comprehensive Income (loss)- Before Reclassifications Amount reclassified from Accumulated Other Comprehensive Income Other Comprehensive Income (loss)- Three months ended 9/30/2021 Balance at 9/30/2021 Net unrealized holding loss on securities available for sale, net of tax $ 7,186 (4,405 ) - (4,405 ) 2,781 Net change in overfunded position in pension and postretirement plans arising during the year, net of tax 6,084 - - - 6,084 Net change in net actuarial loss and prior service credit on pension and postretirement benefit plans, net of tax (1,334 ) - (227 ) (227 ) (1,561 ) Accumulated other comprehensive income (loss), net of tax $ 11,936 (4,405 ) (227 ) (4,632 ) 7,304 Nine 9/30/2020 (dollars in thousands) Balance at 1/1/2020 Other Comprehensive Income (loss)- Before Reclassifications Amount reclassified from Accumulated Other Comprehensive Income Other Comprehensive Income (loss)- Three months ended 9/30/2020 Balance at 9/30/2020 Net unrealized holding loss on securities available for sale, net of tax $ 286 8,432 (855 ) 7,577 7,863 Net change in overfunded position in pension and postretirement plans arising during the year, net of tax 4,840 - - - 4,840 Net change in net actuarial loss and prior service credit on pension and postretirement benefit plans, net of tax (665 ) - (501 ) (501 ) (1,166 ) Accumulated other comprehensive income (loss), net of tax $ 4,461 8,432 (1,356 ) 7,076 11,537 The following represents the reclassifications out of accumulated other comprehensive income (loss) for the three and nine months ended September 30, 2021 and 2020: (dollars in thousands) Three months ended Nine September 30 September 30 2021 2020 2021 2020 Net unrealized holding gain on securities available for sale Realized gain on securities transactions $ - - $ - 1,155 Income tax effect - - - (300 ) Net of tax - - - 855 Amortization of pension and postretirement benefit items: Amortization of net actuarial gain $ 137 222 $ 534 531 Amortization of prior service (cost) credit (177 ) 49 (227 ) 147 Income tax benefit 10 (70 ) (80 ) (177 ) Net of tax (30 ) 201 227 501 Total reclassifications, net of tax $ (30 ) 201 $ 227 1,356

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
	Sep. 30, 2021
Revenue from Contracts with Customers [Abstract]
Revenue from Contracts with Customers	(8) Revenue from Contracts with Customers All of the Company’s revenue from contracts with customers in the scope of ASC 606 is recognized within Non-Interest Income. The following table presents the Company’s sources of Non-Interest Income for the three months and nine months ended September 30, 2021 and 2020. Items outside the scope of ASC 606 are noted as such. (dollars in thousands) Three months ended Nine September 30 September 30 2021 2020 2021 2020 Non-interest income Service Charges on Deposits Overdraft fees $ 735 $ 595 $ 1,964 $ 1,920 Other 518 348 1,479 1,159 Interchange Income 1,330 1,195 3,863 3,072 Net gain on securities transactions (a) - - – 1,155 Wealth management fees 1,558 1,784 5,592 4,752 Other (a) 154 419 513 1,043 Total non-interest income $ 4,295 $ 4,341 $ 13,411 $ 13,101 (a) Not within the scope of ASC 606. A description of the Company’s revenue streams accounted in accordance with ASC 606 as follows: Service charges on Deposit Accounts: Interchange Income: Wealth Management fees: Gains/Losses on Sales of Other Real Estate Owned “OREO”:

Operating Leases

Operating Leases	9 Months Ended
	Sep. 30, 2021
Operating Leases [Abstract]
Operating Leases	(9) Operating Leases The Company adopted Topic 842 “Leases” effective January 1, 2019 and has applied the guidance to all operating leases within the scope of Topic 842 at that date. The company elected to adopt practical expedients, which among other things, does not require reassessment of lease classification. The Company has committed to rent premises used in business operations under non-cancelable operating leases and determines if an arrangement meets the definition of a lease upon inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities on the Company’s balance sheets. Operating lease ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. The Company’s leases do not provide an implicit rate, therefore the Company used its incremental collateralized borrowing rates commensurate with the underlying lease terms to determine present value of operating lease liabilities. Additionally, the Company does allocate the consideration between lease and non-lease components. The Company’s lease terms may include options to extend when it is reasonably certain that the Company will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. Variable lease components, such as fair market value adjustments, are expensed as incurred and not included in ROU assets and operating lease liabilities. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. As of September 30, 2021 the Company did not have any leases with terms of twelve months or less. As of September 30, 2021 the Company has one lease that the construction has not started yet. At September 30, 2021 lease expiration dates ranged from five months to 23.0 years and have a weighted average remaining lease term of 8.7 years. Certain leases provide for increases in future minimum annual rental payments as defined in the lease agreements. As mentioned above the leases generally also include variable lease components which include real estate taxes, insurance, and common area maintenance (“CAM”) charges in the annual rental payments. Other information related to leases was as follows: (dollars in thousands) Three months ended September 30 2021 2020 Operating lease cost $ 2,010 1,966 Variable lease cost 499 369 Total Lease costs $ 2,509 2,335 (dollars in thousands) Nine September 30 2021 2020 Operating lease cost $ 6,029 5,893 Variable lease cost 1,508 1,524 Total Lease costs $ 7,537 7,417 ( Nine months ended September 30, 2021 2020 Supplemental cash flows information: Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6,121 6,022 Right-of-use assets obtained in exchange for lease obligations: 2,696 287 Weighted average remaining lease term 8.7 8.9 Weighted average discount rate 3.07 % 3.25 % Future minimum lease payments under non-cancellable leases as of September 30, 2021 were as follows: (dollars in thousands) Year ending December 31, 2021 (a) $ 2,072 2022 8,014 2023 7,719 2024 7,595 2025 7,223 Thereafter 25,291 Total lease payments $ 57,914 Less: Interest 7,399 Present value of lease liabilities $ 50,515 (a) Excluding the nine months ended September 30, 2021. A member of the Board of Directors has an ownership interest in entities that own commercial real estate leased by the Company for use as branch locations. Total lease payments from the Company to those entities, which are included in the table above, owed at September 30, 2021, were $ million, which includes interest in the amount of $ thousand.

Regulatory Capital Requirements

Regulatory Capital Requirements	9 Months Ended
	Sep. 30, 2021
Regulatory Capital Requirements [Abstract]
Regulatory Capital Requirements	(10) Regulatory Capital Requirements Banks and bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy regulations and, additionally for banks, the prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can result in regulatory action. As of September 30, 2021, the Company and Bank meet all capital adequacy requirements to which they are subject. Prompt corrective action regulations provide five classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized, although these terms are not used to represent overall financial condition. If a bank is not classified as well capitalized, regulatory approval is required to accept brokered deposits. If a bank is undercapitalized, capital distributions are limited, as is asset growth and expansion, and capital restoration plans are required. The federal banking agencies are required to take certain supervisory actions (and may take additional discretionary actions) with respect to an undercapitalized institution or its holding company. Such actions could have a direct material effect on an institution’s or its holding company’s financial statements. As of September, 2021 and December 31, 2020, the most recent regulatory notifications categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. There are no conditions or events since that notification that management believes have changed the Bank’s category. There are no conditions or events since that notification that management believes have changed the Bank’s category The Bank and the Company reported the following capital ratios as of and : (Bank Only) Minimum for Capital Adequacy plus Capital Conservation As of September 30, 2021 Well (dollars in thousands) Amount Ratio Capitalized (1) Buffer (1)(2) Tier 1 leverage ratio $ 561,969 9.148 % 5.000 % 4.000 % Common equity tier 1 capital 561,969 18.899 6.500 7.000 Tier 1 risk-based capital 561,969 18.899 8.000 8.500 Total risk-based capital 599,265 20.153 10.000 10.500 As of December 31, 2020 Well Minimum for Capital Adequacy plus Capital Conservation (dollars in thousands) Amount Ratio Capitalized (1) Buffer (1)(2) Tier 1 leverage ratio $ 539,897 9.378 % 5.000 % 4.000 % Common equity tier 1 capital 539,897 18.646 6.500 7.000 Tier 1 risk-based capital 539,897 18.646 8.000 8.500 Total risk-based capital 576,257 19.902 10.000 10.500 (Consolidated) As of September 30, 2021 Minimum for Capital Adequacy plus Capital Conservation (dollars in thousands) Amount Ratio Buffer (1)(2) Tier 1 leverage ratio $ 578,825 9.420 % 4.000 % Common equity tier 1 capital 578,825 19.461 7.000 Tier 1 risk-based capital 578,825 19.461 8.500 Total risk-based capital 616,131 20.715 10.500 As of December 31, 2020 Minimum for Capital Adequacy plus Capital Conservation (dollars in thousands) Amount Ratio Buffer (1)(2) Tier 1 leverage ratio $ 555,672 9.650 % 4.000 % Common equity Tier 1 capital 555,672 19.187 7.000 Tier 1 risk-based capital 555,672 19.187 8.500 Total risk-based capital 592,040 20.443 10.500 (1) Federal regulatory minimum requirements to be considered to be Well Capitalized and Adequately Capitalized (2) The September and

New Accounting Pronouncements

New Accounting Pronouncements	9 Months Ended
	Sep. 30, 2021
New Accounting Pronouncements [Abstract]
New Accounting Pronouncements	(11) New Accounting Pronouncements In September 2016, the FASB released ASU 2016-13, “Financial Instruments - Credit Losses” (referred to as “CECL”) which amended existing guidance to replace current generally accepted accounting principles used to measure a reporting entity’s credit losses. The main objective of this update is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. To achieve this objective, the amendments in this update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. As previously disclosed, the Company formed a cross-functional team to work through its implementation of CECL. The Company has selected the Discounted Cash Flow modeling method and is running parallel processes and is working to finalize assessment and documentation of processes, data and model validation testing, qualitative factors and forecast periods. The Company had previously elected to delay its adoption of CECL, as provided by the CARES Act until the date on which the National Emergency concerning COVID-19 was terminated or December 31, 2020, whichever occurred first. The December 31, 2020 adoption date under the CARES Act was extended to January 1, 2022 as a part of the COVID-19 Relief Bill, which became law in December 2020, and therefore the Company intends to adopt CECL on January 1, 2022.

Risks and Uncertainties

Risks and Uncertainties	9 Months Ended
	Sep. 30, 2021
Risks and Uncertainties [Abstract]
Risks and Uncertainties	(12) Risks and Uncertainties Beginning in March 2020, the Company experienced negative impacts to its business in the form of requests for loan deferrals of principal and interest due to the business disruption caused by COVID-19. In March 2020, the World Health Organization categorized COVID-19 as a pandemic, and the President of the United States declared the COVID-19 outbreak a national emergency. On March 3, 2020, the Federal Reserve reduced the target federal funds rate by 50 basis points, followed by an additional reduction of 100 basis points on March 16, 2020. The Company has evaluated the impact of the effects of COVID-19 and determined that there have been no lasting material or systematic adverse impacts on the Company’s September 30, 2021 financial statements, except for adjustments in the allowance for loan losses since the inception of the pandemic. As of September 30, 2021, the Company and Bank capital ratios were in excess of all regulatory requirements. While management believes that we have sufficient capital to withstand an extended economic recession brought about by the COVID-19 pandemic, our reported and regulatory capital ratios, as well as the ability of the Company and the Bank to pay dividends or make other distributions, could be adversely impacted by unanticipated credit losses. At this time, we do not believe there exists any impairment to our goodwill, long-lived assets, right of use assets, held to maturity investment securities, or available-for-sale investment securities due to the COVID-19 pandemic. It is uncertain whether prolonged effects of the COVID-19 pandemic will result in future impairment charges related to any of the aforementioned assets and continue to negatively impact net interest income, provision for loan losses, and noninterest income. Loan modifications and payment deferrals as a result of COVID-19 that meet the criteria established under Section 4013 of the CARES Act or under applicable interagency guidance of the federal banking regulators are excluded from evaluation of TDR classification and will continue to be reported as current during the payment deferral period. The Company’s policy is to continue to accrue interest during the deferral period. Loans not meeting the CARES ACT or regulatory guidance are evaluated for TDR and non-accrual treatment under the Company’s existing policies and procedures. As of September 30, 2021, loans in deferral were not material.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Reconciliation of Earnings Per Share	The Company computes earnings per share in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 260, Earnings Per Share reconciliation of the component parts of earnings per share for the three and nine months ended September 30, 2021 and 2020 is as follows (in thousands, except per share data) For the three months ended September 30 For the nine September 30 2021 2020 2021 2020 Net income $ 16,762 14,071 $ 45,278 38,638 Weighted average common shares (1) 19,249 19,287 19,272 19,306 Stock Options (1) 3 1 6 2 Weighted average common shares including potential dilutive shares (1) 19,252 19,288 19,278 19,308 Basic EPS (1) $ 0.871 0.730 $ 2.349 2.002 Diluted EPS (1) $ 0.871 0.730 $ 2.349 2.001 (1) Share and per share amounts have been adjusted for all periods presented for the 1 for 5

Benefit Plans (Tables)

Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2021
Benefit Plans [Abstract]
Net Periodic Benefit	The table below outlines the components of the Company’s net periodic benefit recognized during the three and nine months ended September 30, 2021 and 2020 for its pension and other postretirement benefit plans Three months ended September 30 Pension Benefits Other Postretirement Benefits (dollars in thousands) 2021 2020 2021 2020 Service (credit) cost $ - 9 9 15 Interest cost 214 269 60 40 Expected return on plan assets (712 ) (755 ) (274 ) (296 ) Amortization of net loss (gain) - (5 ) (137 ) (217 ) Amortization of prior service cost (credit) - - 177 (49 ) Net periodic benefit $ (498 ) (482 ) (165 ) (507 ) Nine September 30 Pension Benefits Other Postretirement Benefits (dollars in thousands) 2021 2020 2021 2020 Service cost $ - 28 57 55 Interest cost 642 807 143 152 Expected return on plan assets (2,135 ) (2,265 ) (891 ) (887 ) Amortization of net loss (gain) - - (534 ) (531 ) Amortization of prior service cost (credit) - - 227 (147 ) Net periodic benefit $ (1,493 ) (1,430 ) (998 ) (1,358 )

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2021
Investment Securities [Abstract]
Amortized Cost and Fair Value of Securities Available For Sale	The amortized cost and fair value of the securities available for sale are as follows: September 30 2021 (dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. government sponsored enterprises $ 59,974 - 225 59,749 State and political subdivisions 48 - - 48 Mortgage backed securities and collateralized mortgage obligations - residential 290,508 5,095 2,018 293,585 Corporate bonds 45,914 327 326 45,915 Small Business Administration - guaranteed participation securities 33,650 919 - 34,569 Other 686 - - 686 Total Securities Available for Sale $ 430,780 6,341 2,569 434,552 December 31, 2020 (dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. government sponsored enterprises $ 20,000 - 32 19,968 State and political subdivisions 103 - - 103 Mortgage backed securities and collateralized mortgage obligations - residential 308,432 7,749 23 316,158 Corporate bonds 59,185 916 162 59,939 Small Business Administration - guaranteed participation securities 40,955 1,262 - 42,217 Other 685 1 - 686 Total securities available for sale $ 429,360 9,928 217 439,071
Securities, Available-for-sale and Held-to-maturity [Abstract]
Amortized Cost and Fair Value of Held to Maturity Securities	The amortized cost and fair value of the held to maturity securities are as follows: September 30 2021 (dollars in thousands) Amortized Cost Gross Unrecognized Gains Gross Unrecognized Losses Fair Value Mortgage backed securities and collateralized mortgage obligations - residential $ 10,701 945 - 11,646 Total held to maturity $ 10,701 945 - 11,646 December 31, 2020 (dollars in thousands) Amortized Cost Gross Unrecognized Gains Gross Unrecognized Losses Fair Value Mortgage backed securities and collateralized mortgage obligations - residential $ 13,824 1,164 - 14,988 Total held to maturity $ 13,824 1,164 - 14,988
Proceeds from Sales and Calls of Securities Available For Sale, Gross Realized Gains and Gross Realized Losses	The proceeds from sales and calls of securities available for sale, gross realized gains and gross realized losses from sales and calls during the three and nine months ended September 30, 2021 and 2020 are as follows: Three months ended September 30, (dollars in thousands) 2021 2020 Proceeds from sales $ - $ - Proceeds from calls/paydowns 47,100 43,052 Proceeds from maturities 3,500 - Gross realized gains - - Gross realized losses - - Nine months ended September 30, (dollars in thousands) 2021 2020 Proceeds from sales $ - $ 29,219 Proceeds from calls/paydowns 123,550 197,667 Proceeds from maturities 8,555 5,000 Gross realized gains - 1,155 Gross realized losses - -
Securities Available for Sale [Member]
Securities, Available-for-sale and Held-to-maturity [Abstract]
Debt Securities Based on Securities Contractual Maturity	The following table distributes the debt securities included in the available for sale portfolio as of September 30, 2021 based on the securities’ final maturity. Actual maturities may differ because of securities prepayments and the right of certain issuers to call or prepay their obligations without penalty. Securities not due at a single maturity date are presented separately: (dollars in thousands) Amortized Cost Fair Value Due in one year or less $ 15,667 15,954 Due in one year through five years 90,946 90,435 Due after five years through ten years 9 9 Mortgage backed securities and collateralized mortgage obligations - residential 290,508 293,585 Small Business Administration - guaranteed participation securities 33,650 34,569 $ 430,780 434,552
Gross Unrealized Losses on Investment Securities and Related Fair Values in Unrealized Loss Position	Gross unrealized losses on securities available for sale and the related fair values aggregated by the length of time that individual securities have been in an unrealized loss position, were as follows: September 30 2021 Less than 12 months 12 months or more Total (dollars in thousands) Fair Value Gross Unrealized Loss Fair Value Gross Unrealized Loss Fair Value Gross Unrealized Loss U.S. government sponsored enterprises $ 49,760 214 9,989 11 59,749 225 Mortgage backed securities and collateralized mortgage obligations - residential 94,466 1,910 6,361 108 100,827 2,018 Corporate bonds 5,345 8 14,682 318 20,027 326 Total $ 149,571 2,132 31,032 437 180,603 2,569 December 31, 2020 Less than 12 months 12 months or more Total (dollars in thousands) Fair Value Gross Unrealized Loss Fair Value Gross Unrealized Loss Fair Value Gross Unrealized Loss U.S. government sponsored enterprises $ 19,968 32 - - 19,968 32 Mortgage backed securities and collateralized mortgage obligations - residential 19,471 22 - - 19,471 22 Corporate bonds 14,901 99 4,937 63 19,838 162 Total $ 54,340 153 4,937 63 59,277 216
Held to Maturity Securities [Member]
Securities, Available-for-sale and Held-to-maturity [Abstract]
Debt Securities Based on Securities Contractual Maturity	The following table distributes the debt securities included in the (dollars in thousands) Amortized Cost Fair Value Mortgage backed securities and collateralized mortgage obligations - residential $ 10,701 11,646 $ 10,701 11,646

Loans and Allowance for Loan _2

Loans and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2021
Loans and Allowance for Loan Losses [Abstract]
Recorded Investment in Loans by Loan Class	The following table presents the recorded investment in loans by loan class: September 30, 2021 (dollars in thousands) New York and other states* Florida Total Commercial: Commercial real estate $ 147,557 20,512 168,069 Other 36,078 532 36,610 Real estate mortgage - 1 to 4 family: First mortgages 2,698,870 1,189,086 3,887,956 Home equity loans 49,492 13,837 63,329 Home equity lines of credit 177,240 54,074 231,314 Installment 7,378 2,073 9,451 Total loans, net $ 3,116,615 1,280,114 4,396,729 Less: Allowance for loan losses 47,350 Net loans $ 4,349,379 December 31, 2020 (dollars in thousands) New York and other states* Florida Total Commercial: Commercial real estate $ 148,775 18,666 167,441 Other 44,932 119 45,051 Real estate mortgage - 1 to 4 family: First mortgages 2,606,781 1,098,915 3,705,696 Home equity loans 59,400 15,071 74,471 Home equity lines of credit 193,654 48,540 242,194 Installment 7,810 1,807 9,617 Total loans, net $ 3,061,352 1,183,118 4,244,470 Less: Allowance for loan losses 49,595 Net loans $ 4,194,875 * Includes New York, New Jersey, Vermont and Massachusetts.
Recorded Investment in Non-Accrual Loans by Loan Class	The following table presents the recorded investment in non-accrual loans by loan class: September 30 2021 (dollars in thousands) New York and other states* Florida Total Loans in non-accrual status: Commercial: Commercial real estate $ 136 - 136 Other 40 - 40 Real estate mortgage - 1 to 4 family: First mortgages 15,000 1,894 16,894 Home equity loans 211 45 256 Home equity lines of credit 2,667 127 2,794 Installment 32 - 32 Total non-accrual loans 18,086 2,066 20,152 Restructured real estate mortgages - 1 to 4 family 19 - 19 Total nonperforming loans $ 18,105 2,066 20,171 December 31, 2020 (dollars in thousands) New York and other states* Florida Total Loans in non-accrual status: Commercial: Commercial real estate $ 372 - 372 Other 80 - 80 Real estate mortgage - 1 to 4 family: First mortgages 16,637 1,010 17,647 Home equity loans 80 47 127 Home equity lines of credit 2,662 130 2,792 Installment 43 - 43 Total non-accrual loans 19,874 1,187 21,061 Restructured real estate mortgages - 1 to 4 family 23 - 23 Total nonperforming loans $ 19,897 1,187 21,084 * Includes New York, New Jersey, Vermont and Massachusetts.
Aging of Recorded Investment in Past Due Loans by Loan Class and by Region	The following tables present the aging of the recorded investment in past due loans by loan class and by region as of September 30, 2021 and December 31, 2020: The following table presents the aging of the recorded investment in past due loans by loan class and by region: September 30 2021 New York and other states*: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ 241 - 63 304 147,253 147,557 Other - - 40 40 36,038 36,078 Real estate mortgage - 1 to 4 family: First mortgages 1,802 1,160 10,447 13,409 2,685,461 2,698,870 Home equity loans - - 187 187 49,305 49,492 Home equity lines of credit 446 25 1,145 1,616 175,624 177,240 Installment 5 30 - 35 7,343 7,378 Total $ 2,494 1,215 11,882 15,591 3,101,024 3,116,615 Florida: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ - - - - 20,512 20,512 Other - - - - 532 532 Real estate mortgage - 1 to 4 family: First mortgages 482 182 1,367 2,031 1,187,055 1,189,086 Home equity loans 45 - - 45 13,792 13,837 Home equity lines of credit 186 - - 186 53,888 54,074 Installment 19 - - 19 2,054 2,073 Total $ 732 182 1,367 2,281 1,277,833 1,280,114 Total: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ 241 - 63 304 167,765 168,069 Other - - 40 40 36,570 36,610 Real estate mortgage - 1 to 4 family: First mortgages 2,284 1,342 11,814 15,440 3,872,516 3,887,956 Home equity loans 45 - 187 232 63,097 63,329 Home equity lines of credit 632 25 1,145 1,802 229,512 231,314 Installment 24 30 - 54 9,397 9,451 Total $ 3,226 1,397 13,249 17,872 4,378,857 4,396,729 * Includes New York, New Jersey, Vermont and Massachusetts. December 31, 2020 New York and other states*: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ 125 77 279 481 148,294 148,775 Other - - 80 80 44,852 44,932 Real estate mortgage - 1 to 4 family: First mortgages 1,220 982 10,927 13,129 2,593,652 2,606,781 Home equity loans 120 1 48 169 59,231 59,400 Home equity lines of credit 401 344 1,273 2,018 191,636 193,654 Installment 3 - 43 46 7,764 7,810 Total $ 1,869 1,404 12,650 15,923 3,045,429 3,061,352 Florida: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ - - - - 18,666 18,666 Other - - - - 119 119 Real estate mortgage - 1 to 4 family: First mortgages 365 517 655 1,537 1,097,378 1,098,915 Home equity loans - - 47 47 15,024 15,071 Home equity lines of credit - - - - 48,540 48,540 Installment 7 10 - 17 1,790 1,807 Total $ 372 527 702 1,601 1,181,517 1,183,118 Total: (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 + Days Past Due Total 30+ days Past Due Current Total Loans Commercial: Commercial real estate $ 125 77 279 481 166,960 167,441 Other - - 80 80 44,971 45,051 Real estate mortgage - 1 to 4 family: First mortgages 1,585 1,499 11,582 14,666 3,691,030 3,705,696 Home equity loans 120 1 95 216 74,255 74,471 Home equity lines of credit 401 344 1,273 2,018 240,176 242,194 Installment 10 10 43 63 9,554 9,617 Total $ 2,241 1,931 13,352 17,524 4,226,946 4,244,470 * Includes New York, New Jersey, Vermont and Massachusetts.
Activity in Allowance For Loan Losses by Portfolio Segment	Activity in the allowance for loan losses by portfolio segment is summarized as follows: For the three months ended September 30 2021 ( dollars in s) Commercial Real Estate Mortgage- 1 to 4 Family Installment Total Balance at beginning of period $ 4,106 45,617 432 50,155 Loans charged off: New York and other states* 30 72 17 119 Florida - 1 - 1 Total loan chargeoffs 30 73 17 120 Recoveries of loans previously charged off: New York and other states* - 111 3 114 Florida - 1 - 1 Total recoveries - 112 3 115 Net loans charged off (recoveries) 30 (39 ) 14 5 (Credit) provision for loan losses (823 ) (2,003 ) 26 (2,800 ) Balance at end of period $ 3,253 43,653 444 47,350 For the three months ended September 30 2020 ( dollars in s) Commercial Real Estate Mortgage- 1 to 4 Family Installment Total Balance at beginning of period $ 4,366 43,274 504 48,144 Loans charged off: New York and other states* - 64 21 85 Florida - - - - Total loan chargeoffs - 64 21 85 Recoveries of loans previously charged off: New York and other states* 1 60 3 64 Florida - - - - Total recoveries 1 60 3 64 Net loans (recoveries) (1 ) 4 18 21 (Credit) provision for loan losses (100 ) 1,053 47 1,000 Balance at end of period $ 4,267 44,323 533 49,123 * Includes New York, New Jersey, Vermont and Massachusetts. For the nine September 30 2021 Commercial Real Estate Mortgage- 1 to 4 Family Installment Total Balance at beginning of period $ 4,140 44,950 505 49,595 Loans charged off: New York and other states* 30 178 25 233 Florida - 1 2 3 Total loan chargeoffs 30 179 27 236 Recoveries of loans previously charged off: New York and other states* 32 355 52 439 Florida - 2 - 2 Total recoveries 32 357 52 441 Net loans (recoveries) charged off (2 ) (178 ) (25 ) (205 ) (Credit) provision for loan losses (889 ) (1,475 ) (86 ) (2,450 ) Balance at end of period $ 3,253 43,653 444 47,350 For the nine September 30 2020 Commercial Real Estate Mortgage- 1 to 4 Family Installment Total Balance at beginning of period $ 3,999 39,748 570 44,317 Loans charged off: New York and other states* 3 277 77 357 Florida - - 19 19 Total loan chargeoffs 3 277 96 376 Recoveries of loans previously charged off: New York and other states* 9 160 11 180 Florida - 2 - 2 Total recoveries 9 162 11 182 Net loans charged off (recoveries) (6 ) 115 85 194 Provision for loan losses 262 4,690 48 5,000 Balance at end of period $ 4,267 44,323 533 49,123 * Includes New York, New Jersey, Vermont and Massachusetts.
Allowance For Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method	The following tables present the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of September 30, 2021 and December 31, 2020: September 30 2021 (dollars in thousands) Commercial Loans 1-to-4 Family Residential Real Estate Installment Loans Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ - - - - Collectively evaluated for impairment 3,253 43,653 444 47,350 Total ending allowance balance $ 3,253 43,653 444 47,350 Loans: Individually evaluated for impairment $ 521 19,292 - 19,813 Collectively evaluated for impairment 204,158 4,163,307 9,451 4,376,916 Total ending loans balance $ 204,679 4,182,599 9,451 4,396,729 December 31, 2020 (dollars in thousands) Commercial Loans 1-to-4 Family Residential Real Estate Installment Loans Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ - - - - Collectively evaluated for impairment 4,140 44,950 505 49,595 Total ending allowance balance $ 4,140 44,950 505 49,595 Loans: Individually evaluated for impairment $ 1,028 20,553 - 21,581 Collectively evaluated for impairment 211,464 4,001,808 9,617 4,222,889 Total ending loans balance $ 212,492 4,022,361 9,617 4,244,470
Impaired Loans by Loan Class	The following tables present impaired loans by loan class as of September 30, 2021 and December 31, 2020: September 30 2021 New York and other states*: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 388 480 - 1,147 Other 40 40 - 108 Real estate mortgage - 1 to 4 family: First mortgages 14,261 14,567 - 14,070 Home equity loans 199 199 - 235 Home equity lines of credit 2,052 2,192 - 2,255 Total $ 16,940 17,478 - 17,815 Florida: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 93 93 - 105 Other - - - - Real estate mortgage - 1 to 4 family: First mortgages 2,597 2,597 - 2,563 Home equity loans - - - 15 Home equity lines of credit 183 183 - 246 Total $ 2,873 2,873 - 2,929 Total: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 481 573 - 1,252 Other 40 40 - 108 Real estate mortgage - 1 to 4 family: First mortgages 16,858 17,164 - 16,633 Home equity loans 199 199 - 250 Home equity lines of credit 2,235 2,375 - 2,501 Total $ 19,813 20,351 - 20,744 * Includes New York, New Jersey, Vermont and Massachusetts. December 31, 2020 New York and other states*: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 819 943 - 1,186 Other 111 111 - 103 Real estate mortgage - 1 to 4 family: First mortgages 15,024 15,411 - 14,110 Home equity loans 219 240 - 235 Home equity lines of credit 2,158 2,298 - 2,258 Total $ 18,331 19,003 - 17,892 Florida: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 98 98 - 105 Other - - - - Real estate mortgage - 1 to 4 family: First mortgages 2,908 2,908 - 2,555 Home equity loans - - - 16 Home equity lines of credit 244 244 - 246 Total $ 3,250 3,250 - 2,922 Total: (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Commercial: Commercial real estate $ 917 1,041 - 1,291 Other 111 111 - 103 Real estate mortgage - 1 to 4 family: First mortgages 17,932 18,319 - 16,665 Home equity loans 219 240 - 251 Home equity lines of credit 2,402 2,542 - 2,504 Total $ 21,581 22,253 - 20,814 * Includes New York, New Jersey, Vermont and Massachusetts.
Modified Loans by Class that were Determined to be TDR's	The following table presents, by class, loans that were modified as TDR’s: Three months ended 9/30/2021 Three months ended 9/30/2020 New York and other states*: Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (dollars in thousands) Commercial: Commercial real estate - $ - - 1 $ 126 126 Real estate mortgage - 1 to 4 family: First mortgages 2 557 557 6 1,533 1,533 Home equity loans - - - - - - Home equity lines of credit 1 31 31 1 50 50 Total 3 $ 588 588 8 $ 1,709 1,709 Florida: (dollars in thousands) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial: Commercial real estate - $ - - - $ - - Real estate mortgage - 1 to 4 family: First mortgages - - - - - - Home equity loans - - - - - - Home equity lines of credit - - - - - - Total - $ - - - $ - - * Includes New York, New Jersey, Vermont and Massachusetts. Nine 9/30/2021 Nine 9/30/2020 New York and other states*: Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (dollars in thousands) Commercial: Commercial real estate - $ - - 1 $ 126 126 Real estate mortgage - 1 to 4 family: First mortgages 4 923 923 9 1,982 1,982 Home equity loans 1 2 2 - - - Home equity lines of credit 3 88 88 3 169 169 Total 8 $ 1,013 1,013 13 $ 2,277 2,277 Florida: (dollars in thousands) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial: Commercial real estate - $ - - - $ - - Real estate mortgage - 1 to 4 family: First mortgages 1 78 78 4 589 589 Home equity loans - - - - - - Home equity lines of credit - - - - - - Total 1 $ 78 78 4 $ 589 589 * Includes New York, New Jersey, Vermont and Massachusetts.
Loans by Class Modified as TDR's For Which There was a Payment Default	The following table presents, by class, TDR’s that defaulted during the months ended and which had been modified within the last months: Three months ended 9/30/2021 Three months ended 9/30/2020 New York and other states*: Number of Contracts Recorded Investment Number of Contracts Recorded Investment (dollars in thousands) Commercial: Commercial real estate - $ - - $ - Real estate mortgage - 1 to 4 family: First mortgages - - 3 264 Home equity lines of credit - - 1 19 Total - $ - 4 $ 283 Florida: (dollars in thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial: Commercial real estate - $ - - $ - Real estate mortgage - 1 to 4 family: First mortgages - - - - Home equity loans - - - - Home equity lines of credit - - - - Total - $ - - $ - * Includes New York, New Jersey, Vermont and Massachusetts. Nine months ended 9/30/2021 Nine months ended 9/30/2020 New York and other states*: Number of Contracts Recorded Investment Number of Contracts Recorded Investment (dollars in thousands) Commercial: Commercial real estate - $ - - $ - Real estate mortgage - 1 to 4 family: First mortgages - - 4 459 Home equity loans - - - - Home equity lines of credit - - 1 19 Total - $ - 5 $ 478 Florida: (dollars in thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial: Commercial real estate - $ - - $ - Real estate mortgage - 1 to 4 family: First mortgages - - - - Home equity lines of credit - - - - - - - - Total - $ - - $ - * Includes New York, New Jersey, Vermont and Massachusetts.
Risk Category Loans by Class of Loans	As of September 30, 2021 and December 31, 2020, and based on the most recent analysis performed, the risk category of loans by class of loans is as follows: September 30 2021 New York and other states*: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 145,400 2,157 147,557 Other 35,913 165 36,078 $ 181,313 2,322 183,635 Florida: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 19,957 555 20,512 Other 532 - 532 $ 20,489 555 21,044 Total: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 165,357 2,712 168,069 Other 36,445 165 36,610 $ 201,802 2,877 204,679 * Includes New York, New Jersey and Massachusetts. December 31, 2020 New York and other states: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 145,741 3,034 148,775 Other 44,522 410 44,932 $ 190,263 3,444 193,707 Florida: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 18,092 574 18,666 Other 119 - 119 $ 18,211 574 18,785 Total: (dollars in thousands) Pass Classified Total Commercial: Commercial real estate $ 163,833 3,608 167,441 Other 44,641 410 45,051 $ 208,474 4,018 212,492 * Includes New York, New Jersey and Massachusetts.

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value of Financial Instruments [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value under ASC 820 on a recurring basis are summarized below: There were transfers between Level and Level during the and months ended and . Fair Value Measurements at September 30 2021 (dollars in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. government sponsored enterprises $ 59,749 $ - $ 59,749 $ - State and political subdivisions 48 - 48 - Mortgage backed securities and collateralized mortgage obligations - residential 293,585 - 293,585 - Corporate bonds 45,915 - 45,915 - Small Business Administration- guaranteed participation securities 34,569 - 34,569 - Other securities 686 - 686 - Total securities available for sale $ 434,552 $ - $ 434,552 $ - Fair Value Measurements at December 31, 2020 (dollars in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Securities available for sale: U.S. government sponsored enterprises $ 19,968 $ - $ 19,968 $ - State and political subdivisions 103 - 103 - Mortgage backed securities and collateralized mortgage obligations - residential 316,158 - 316,158 - Corporate bonds 59,939 - 59,939 - Small Business Administration- guaranteed participation securities 42,217 - 42,217 - Other securities 686 - 686 - Total securities available for sale $ 439,071 $ - $ 439,071 $ -
Assets Measured at Fair Value on Non-Recurring Basis	Assets measured at fair value on a non-recurring basis are summarized below: Fair Value Measurements at September 30, 2021 Using: (dollars in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation technique Unobservable inputs Range (Weighted Average) Other real estate owned $ 511 $ - $ - $ 511 Sales comparison approach Adjustments for differences between comparable sales 3% - 21% (10 %) Impaired loans: Real estate mortgage -1 to 4 family - - - - Sales comparison Adjustments for differences between comparable sales N/A Fair Value Measurements at December 31, 2020 Using: (dollars in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation technique Unobservable inputs Range (Weighted Average) Other real estate owned $ 541 $ - $ - $ 541 Sales comparison approach Adjustments for differences between comparable sales 1% - 7% (2 %) Impaired loans: Real estate mortgage -1 to 4 family 211 - - 211 Sales comparison Adjustments for differences between comparable sales 11% - 12% (12 %)
Carrying Amounts and Estimated Fair Values of Financial Instruments	In accordance with FASB Topic 825 , Financial Instruments ( ASC 825 ”), the : (dollars in thousands) Fair Value Measurements at Carrying September 30 2021 Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 1,193,339 1,193,339 - - 1,193,339 Securities available for sale 434,552 - 434,552 - 434,552 Held to maturity securities 10,701 - 11,646 - 11,646 Federal Home Loan Bank stock 5,604 N/A N/A N/A N/A Net loans 4,349,379 - - 4,419,921 4,419,921 Accrued interest receivable 9,358 37 1,042 8,279 9,358 Financial liabilities: Demand deposits 790,663 790,663 - - 790,663 Interest bearing deposits 4,450,355 3,325,774 1,123,934 - 4,449,708 Short-term borrowings 230,770 - 230,770 - 230,770 Accrued interest payable 225 30 195 - 225 (dollars in thousands) Fair Value Measurements at Carrying December 31, 2020 Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 1,107,099 1,107,099 - - 1,107,099 Securities available for sale 439,071 - 439,071 - 439,071 Held to maturity securities 13,824 - 14,988 - 14,988 Federal Reserve Bank and Federal Home Loan Bank stock 5,506 N/A N/A N/A N/A Net loans 4,194,875 - - 4,287,585 4,287,585 Accrued interest receivable 10,031 39 1,458 8,534 10,031 Financial liabilities: Demand deposits 652,756 652,756 - - 652,756 Interest bearing deposits 4,384,437 3,088,064 1,298,375 - 4,386,439 Short-term borrowings 214,755 - 214,755 - 214,755 Accrued interest payable 474 68 406 - 474

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss) Balances, Net of Tax	The following is a summary of the accumulated other comprehensive (loss) income balances, net of tax: Three months ended 9/30/2021 (dollars in thousands) Balance at 7/1/2021 Other Comprehensive Income (loss)- Before Reclassifications Amount reclassified from Accumulated Other Comprehensive Income Other Comprehensive Income (loss)- Three months ended 9/30/2021 Balance at 9/30/2021 Net unrealized holding loss on securities available for sale, net of tax $ 3,347 (566 ) - (566 ) 2,781 Net change in overfunded position in pension and postretirement plans arising during the year, net of tax 6,084 - - - 6,084 Net change in net actuarial loss and prior service credit on pension and postretirement benefit plans, net of tax (1,591 ) - 30 30 (1,561 ) Accumulated other comprehensive income (loss), net of tax $ 7,840 (566 ) 30 (536 ) 7,304 Three months ended 9/30/2020 (dollars in thousands) Balance at 7/1/2020 Other Comprehensive Income (loss)- Before Reclassifications Amount reclassified from Accumulated Other Comprehensive Income Other Comprehensive Income (loss)- Three months ended 9/30/2020 Balance at 9/30/2020 Net unrealized holding (gain) loss on securities available for sale, net of tax $ 8,061 (198 ) - (198 ) 7,863 Net change in overfunded position in pension and postretirement plans arising during the year, net of tax 4,840 - - - 4,840 Net change in net actuarial (gain) loss and prior service cost on pension and postretirement benefit plans, net of tax (965 ) - (201 ) (201 ) (1,166 ) Accumulated other comprehensive income (loss), net of tax $ 11,936 (198 ) (201 ) (399 ) 11,537 Nine months ended 9/30/2021 (dollars in thousands) Balance at 1/1/2021 Other Comprehensive Income (loss)- Before Reclassifications Amount reclassified from Accumulated Other Comprehensive Income Other Comprehensive Income (loss)- Three months ended 9/30/2021 Balance at 9/30/2021 Net unrealized holding loss on securities available for sale, net of tax $ 7,186 (4,405 ) - (4,405 ) 2,781 Net change in overfunded position in pension and postretirement plans arising during the year, net of tax 6,084 - - - 6,084 Net change in net actuarial loss and prior service credit on pension and postretirement benefit plans, net of tax (1,334 ) - (227 ) (227 ) (1,561 ) Accumulated other comprehensive income (loss), net of tax $ 11,936 (4,405 ) (227 ) (4,632 ) 7,304 Nine 9/30/2020 (dollars in thousands) Balance at 1/1/2020 Other Comprehensive Income (loss)- Before Reclassifications Amount reclassified from Accumulated Other Comprehensive Income Other Comprehensive Income (loss)- Three months ended 9/30/2020 Balance at 9/30/2020 Net unrealized holding loss on securities available for sale, net of tax $ 286 8,432 (855 ) 7,577 7,863 Net change in overfunded position in pension and postretirement plans arising during the year, net of tax 4,840 - - - 4,840 Net change in net actuarial loss and prior service credit on pension and postretirement benefit plans, net of tax (665 ) - (501 ) (501 ) (1,166 ) Accumulated other comprehensive income (loss), net of tax $ 4,461 8,432 (1,356 ) 7,076 11,537
Reclassifications out of Accumulated Other Comprehensive Income (Loss)	The following represents the reclassifications out of accumulated other comprehensive income (loss) for the three and nine months ended September 30, 2021 and 2020: (dollars in thousands) Three months ended Nine September 30 September 30 2021 2020 2021 2020 Net unrealized holding gain on securities available for sale Realized gain on securities transactions $ - - $ - 1,155 Income tax effect - - - (300 ) Net of tax - - - 855 Amortization of pension and postretirement benefit items: Amortization of net actuarial gain $ 137 222 $ 534 531 Amortization of prior service (cost) credit (177 ) 49 (227 ) 147 Income tax benefit 10 (70 ) (80 ) (177 ) Net of tax (30 ) 201 227 501 Total reclassifications, net of tax $ (30 ) 201 $ 227 1,356

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	9 Months Ended
	Sep. 30, 2021
Revenue from Contracts with Customers [Abstract]
Source of Non-Interest Income	All of the Company’s revenue from contracts with customers in the scope of ASC 606 is recognized within Non-Interest Income. The following table presents the Company’s sources of Non-Interest Income for the three months and nine months ended September 30, 2021 and 2020. Items outside the scope of ASC 606 are noted as such. (dollars in thousands) Three months ended Nine September 30 September 30 2021 2020 2021 2020 Non-interest income Service Charges on Deposits Overdraft fees $ 735 $ 595 $ 1,964 $ 1,920 Other 518 348 1,479 1,159 Interchange Income 1,330 1,195 3,863 3,072 Net gain on securities transactions (a) - - – 1,155 Wealth management fees 1,558 1,784 5,592 4,752 Other (a) 154 419 513 1,043 Total non-interest income $ 4,295 $ 4,341 $ 13,411 $ 13,101 (a) Not within the scope of ASC 606.

Operating Leases (Tables)

Operating Leases (Tables)	9 Months Ended
	Sep. 30, 2021
Operating Leases [Abstract]
Other Information Related to Leases	Other information related to leases was as follows: (dollars in thousands) Three months ended September 30 2021 2020 Operating lease cost $ 2,010 1,966 Variable lease cost 499 369 Total Lease costs $ 2,509 2,335 (dollars in thousands) Nine September 30 2021 2020 Operating lease cost $ 6,029 5,893 Variable lease cost 1,508 1,524 Total Lease costs $ 7,537 7,417
Supplemental Cash Flows Information	( Nine months ended September 30, 2021 2020 Supplemental cash flows information: Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6,121 6,022 Right-of-use assets obtained in exchange for lease obligations: 2,696 287 Weighted average remaining lease term 8.7 8.9 Weighted average discount rate 3.07 % 3.25 %
Future Minimum Lease Payments	Future minimum lease payments under non-cancellable leases as of September 30, 2021 were as follows: (dollars in thousands) Year ending December 31, 2021 (a) $ 2,072 2022 8,014 2023 7,719 2024 7,595 2025 7,223 Thereafter 25,291 Total lease payments $ 57,914 Less: Interest 7,399 Present value of lease liabilities $ 50,515 (a) Excluding the nine months ended September 30, 2021.

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	9 Months Ended
	Sep. 30, 2021
Regulatory Capital Requirements [Abstract]
Actual Capital Amounts and Ratios	The Bank and the Company reported the following capital ratios as of and : (Bank Only) Minimum for Capital Adequacy plus Capital Conservation As of September 30, 2021 Well (dollars in thousands) Amount Ratio Capitalized (1) Buffer (1)(2) Tier 1 leverage ratio $ 561,969 9.148 % 5.000 % 4.000 % Common equity tier 1 capital 561,969 18.899 6.500 7.000 Tier 1 risk-based capital 561,969 18.899 8.000 8.500 Total risk-based capital 599,265 20.153 10.000 10.500 As of December 31, 2020 Well Minimum for Capital Adequacy plus Capital Conservation (dollars in thousands) Amount Ratio Capitalized (1) Buffer (1)(2) Tier 1 leverage ratio $ 539,897 9.378 % 5.000 % 4.000 % Common equity tier 1 capital 539,897 18.646 6.500 7.000 Tier 1 risk-based capital 539,897 18.646 8.000 8.500 Total risk-based capital 576,257 19.902 10.000 10.500 (Consolidated) As of September 30, 2021 Minimum for Capital Adequacy plus Capital Conservation (dollars in thousands) Amount Ratio Buffer (1)(2) Tier 1 leverage ratio $ 578,825 9.420 % 4.000 % Common equity tier 1 capital 578,825 19.461 7.000 Tier 1 risk-based capital 578,825 19.461 8.500 Total risk-based capital 616,131 20.715 10.500 As of December 31, 2020 Minimum for Capital Adequacy plus Capital Conservation (dollars in thousands) Amount Ratio Buffer (1)(2) Tier 1 leverage ratio $ 555,672 9.650 % 4.000 % Common equity Tier 1 capital 555,672 19.187 7.000 Tier 1 risk-based capital 555,672 19.187 8.500 Total risk-based capital 592,040 20.443 10.500 (1) Federal regulatory minimum requirements to be considered to be Well Capitalized and Adequately Capitalized (2) The September and

Financial Statement Presentat_2

Financial Statement Presentation (Details)	May 28, 2021shares	Sep. 30, 2021$ / shares	Dec. 31, 2020$ / shares
Financial Statement Presentation [Abstract]
Reverse stock split ratio	0.2
Capital stock, par value (in dollars per share) | $ / shares		$ 1	$ 1
Number of common stock issued in connection with reverse stock split (in shares) | shares	0

Earnings Per Share (Details)

Earnings Per Share (Details) $ / shares in Units, shares in Thousands, $ in Thousands		May 28, 2021	Sep. 30, 2021USD ($)$ / sharesshares	Jun. 30, 2021USD ($)	Mar. 31, 2021USD ($)	Sep. 30, 2020USD ($)$ / sharesshares	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Sep. 30, 2021USD ($)$ / sharesshares	Sep. 30, 2020USD ($)$ / sharesshares
Reconciliation of the component parts of earnings per share [Abstract]
Net income | $			$ 16,762	$ 14,433	$ 14,083	$ 14,071	$ 11,254	$ 13,313	$ 45,278	$ 38,638
Weighted average common shares (in shares)	[1]		19,249			19,287			19,272	19,306
Stock Options (in shares)	[1]		3			1			6	2
Weighted average common shares including potential dilutive shares (in shares)	[1]		19,252			19,288			19,278	19,308
Basic EPS (in dollars per share) | $ / shares	[1],[2]		$ 0.871			$ 0.730			$ 2.349	$ 2.002
Diluted EPS (in dollars per share) | $ / shares	[1],[2]		$ 0.871			$ 0.730			$ 2.349	$ 2.001
Reverse stock split ratio		0.2
Stock Options [Member]
Antidilutive Securities [Abstract]
Number of anti-dilutive stock options excluded from diluted earnings per share (in shares)			60			90			60	90
[1]	Share and per share amounts have been adjusted for all periods presented for the 1 for 5
[2]	All periods presented have been adjusted for the 1 for 5

Benefit Plans (Details)

Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Components of net periodic benefit cost [Abstract]
Contribution made to pension and postretirement plans			$ 0
Pension Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service (credit) cost	$ 0	$ 9	0	$ 28
Interest cost	214	269	642	807
Expected return on plan assets	(712)	(755)	(2,135)	(2,265)
Amortization of net loss (gain)	0	(5)	0	0
Amortization of prior service cost (credit)	0	0	0	0
Net periodic benefit	(498)	(482)	(1,493)	(1,430)
Other Postretirement Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service (credit) cost	9	15	57	55
Interest cost	60	40	143	152
Expected return on plan assets	(274)	(296)	(891)	(887)
Amortization of net loss (gain)	(137)	(217)	(534)	(531)
Amortization of prior service cost (credit)	177	(49)	227	(147)
Net periodic benefit	$ (165)	$ (507)	$ (998)	$ (1,358)

Investment Securities, Availabl

Investment Securities, Available-for-sale Securities, Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	$ 430,780	$ 429,360
Gross Unrealized Gains	6,341	9,928
Gross Unrealized Losses	2,569	217
Fair Value	434,552	439,071
U. S. Government Sponsored Enterprises [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	59,974	20,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	225	32
Fair Value	59,749	19,968
State and Political Subdivisions [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	48	103
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	48	103
Mortgage-Backed Securities and Collateralized Mortgage Obligations - Residential [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	290,508	308,432
Gross Unrealized Gains	5,095	7,749
Gross Unrealized Losses	2,018	23
Fair Value	293,585	316,158
Corporate Bonds [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	45,914	59,185
Gross Unrealized Gains	327	916
Gross Unrealized Losses	326	162
Fair Value	45,915	59,939
Small Business Administration-Guaranteed Participation Securities [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	33,650	40,955
Gross Unrealized Gains	919	1,262
Gross Unrealized Losses	0	0
Fair Value	34,569	42,217
Other [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	686	685
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Fair Value	$ 686	$ 686

Investment Securities, Availa_2

Investment Securities, Available-for-sale Securities, Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amortized Cost [Abstract]
Due in one year or less	$ 15,667
Due in one year through five years	90,946
Due after five years through ten years	9
Amortized Cost	430,780	$ 429,360
Fair Value [Abstract]
Due in one year or less	15,954
Due in one year through five years	90,435
Due after five years through ten years	9
Fair Value	434,552	439,071
Mortgage-Backed Securities and Collateralized Mortgage Obligations - Residential [Member]
Amortized Cost [Abstract]
Securities, amortized cost	290,508
Amortized Cost	290,508	308,432
Fair Value [Abstract]
Securities, fair value	293,585
Fair Value	293,585	316,158
Small Business Administration-Guaranteed Participation Securities [Member]
Amortized Cost [Abstract]
Securities, amortized cost	33,650
Amortized Cost	33,650	40,955
Fair Value [Abstract]
Securities, fair value	34,569
Fair Value	$ 34,569	$ 42,217

Investment Securities, Availa_3

Investment Securities, Available-for-sale Securities, Gross Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	$ 149,571	$ 54,340
12 months or more - Fair Value	31,032	4,937
Total - Fair Value	180,603	59,277
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	2,132	153
12 months or more - Gross Unrealized Loss	437	63
Total - Gross Unrealized Loss	2,569	216
U. S. Government Sponsored Enterprises [Member]
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	49,760	19,968
12 months or more - Fair Value	9,989	0
Total - Fair Value	59,749	19,968
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	214	32
12 months or more - Gross Unrealized Loss	11	0
Total - Gross Unrealized Loss	225	32
Mortgage-Backed Securities and Collateralized Mortgage Obligations - Residential [Member]
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	94,466	19,471
12 months or more - Fair Value	6,361	0
Total - Fair Value	100,827	19,471
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	1,910	22
12 months or more - Gross Unrealized Loss	108	0
Total - Gross Unrealized Loss	2,018	22
Corporate Bonds [Member]
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	5,345	14,901
12 months or more - Fair Value	14,682	4,937
Total - Fair Value	20,027	19,838
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	8	99
12 months or more - Gross Unrealized Loss	318	63
Total - Gross Unrealized Loss	$ 326	$ 162

Investment Securities, Availa_4

Investment Securities, Available-for-sale Securities, Transaction Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Proceeds from sales and calls of securities available for sale, gross realized gains and gross realized losses [Abstract]
Proceeds from sales		$ 0	$ 0	$ 0	$ 29,219
Proceeds from calls/paydowns		47,100	43,052	123,550	197,667
Proceeds from maturities		3,500	0	8,555	5,000
Gross realized gains	[1]	0	0	0	1,155
Gross realized losses		0	0	0	0
Sales and transfers of available for sale securities		$ 0	$ 0	$ 0	$ 0
[1]	Not within the scope of ASC 606.

Investment Securities, Held-to-

Investment Securities, Held-to-maturity Securities, Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amortized cost and fair value of the held to maturity securities [Abstract]
Amortized Cost	$ 10,701	$ 13,824
Gross Unrecognized Gains	945	1,164
Gross Unrecognized Losses	0	0
Fair Value	11,646	14,988
Mortgage-Backed Securities and Collateralized Mortgage Obligations - Residential [Member]
Amortized cost and fair value of the held to maturity securities [Abstract]
Amortized Cost	10,701	13,824
Gross Unrecognized Gains	945	1,164
Gross Unrecognized Losses	0	0
Fair Value	$ 11,646	$ 14,988

Investment Securities, Held-t_2

Investment Securities, Held-to-maturity Securities, Maturity (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Amortized Cost [Abstract]
Amortized Cost	$ 10,701		$ 13,824
Fair Value [Abstract]
Fair Value	11,646		14,988
Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Gross unrecognized losses on held to maturity securities	0		0
Sales and transfers of held to maturity securities	0	$ 0
Mortgage-Backed Securities and Collateralized Mortgage Obligations - Residential [Member]
Amortized Cost [Abstract]
Securities, amortized cost	10,701
Amortized Cost	10,701		13,824
Fair Value [Abstract]
Securities, fair value	11,646
Fair Value	$ 11,646		$ 14,988

Loans and Allowance for Loan _3

Loans and Allowance for Loan Losses, Recorded Investment in Loans by Loan Class (Details) - USD ($) $ in Thousands		Sep. 30, 2021		Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Loans and Leases Receivable [Abstract]
Total loans, net		$ 4,396,729			$ 4,244,470
Less: Allowance for loan losses		47,350		$ 50,155	49,595	$ 49,123	$ 48,144	$ 44,317
Net loans		4,349,379			4,194,875
New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	3,116,615			3,061,352
Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		1,280,114			1,183,118
Real Estate Construction Loans [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		37,700			24,700
Residential Borrowers [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		21,900			10,500
Commercial Borrowers Residential Purpose [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		15,800			14,200
Commercial [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		204,679			212,492
Less: Allowance for loan losses		3,253		4,106	4,140	4,267	4,366	3,999
Commercial [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		183,635	[2]		193,707
Commercial [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		21,044			18,785
Commercial [Member] | Commercial Real Estate [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		168,069			167,441
Commercial [Member] | Commercial Real Estate [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	147,557	[2]		148,775
Commercial [Member] | Commercial Real Estate [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		20,512			18,666
Commercial [Member] | Other [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		36,610			45,051
Commercial [Member] | Other [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	36,078	[2]		44,932
Commercial [Member] | Other [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		532			119
Commercial [Member] | PPP Loans [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		20,500			28,900
Real Estate Mortgage - 1 to 4 Family [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		4,182,599			4,022,361
Less: Allowance for loan losses		43,653		45,617	44,950	44,323	43,274	39,748
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		3,887,956			3,705,696
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	2,698,870			2,606,781
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		1,189,086			1,098,915
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		63,329			74,471
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	49,492			59,400
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		13,837			15,071
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		231,314			242,194
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	177,240			193,654
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		54,074			48,540
Installment [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		9,451			9,617
Less: Allowance for loan losses		444		$ 432	505	$ 533	$ 504	$ 570
Installment [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	7,378			7,810
Installment [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		$ 2,073			$ 1,807
[1]	Includes New York, New Jersey, Vermont and Massachusetts.
[2]	Includes New York, New Jersey and Massachusetts.

Loans and Allowance for Loan _4

Loans and Allowance for Loan Losses, Non-accrual Loans, By Loan Class (Details) - USD ($) $ in Thousands		Sep. 30, 2021	Dec. 31, 2020
Non accrual loans by loan class [Abstract]
Total non-accrual loans		$ 20,152	$ 21,061
Restructured real estate mortgages - 1 to 4 family		19	23
Total nonperforming loans		20,171	21,084
Other estate owned		511	541
New York and Other States [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans	[1]	18,086	19,874
Restructured real estate mortgages - 1 to 4 family	[1]	19	23
Total nonperforming loans	[1]	18,105	19,897
Florida [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		2,066	1,187
Restructured real estate mortgages - 1 to 4 family		0	0
Total nonperforming loans		2,066	1,187
Residential Real Estate [Member]
Non accrual loans by loan class [Abstract]
Non accrual residential mortgage loans in the process of foreclosure		11,900	11,600
Commercial [Member] | Commercial Real Estate [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		136	372
Commercial [Member] | Commercial Real Estate [Member] | New York and Other States [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans	[1]	136	372
Commercial [Member] | Commercial Real Estate [Member] | Florida [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		0	0
Commercial [Member] | Other [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		40	80
Commercial [Member] | Other [Member] | New York and Other States [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans	[1]	40	80
Commercial [Member] | Other [Member] | Florida [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		0	0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		16,894	17,647
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | New York and Other States [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans	[1]	15,000	16,637
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Florida [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		1,894	1,010
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		256	127
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | New York and Other States [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans	[1]	211	80
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Florida [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		45	47
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		2,794	2,792
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | New York and Other States [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans	[1]	2,667	2,662
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Florida [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		127	130
Installment [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		32	43
Installment [Member] | New York and Other States [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans	[1]	32	43
Installment [Member] | Florida [Member]
Non accrual loans by loan class [Abstract]
Total non-accrual loans		$ 0	$ 0
[1]	Includes New York, New Jersey, Vermont and Massachusetts.

Loans and Allowance for Loan _5

Loans and Allowance for Loan Losses, Past Due (Details) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended
		Sep. 30, 2021		Dec. 31, 2020
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		$ 4,396,729		$ 4,244,470
Number of days past due		90 days		90 days
Loans that are 90 days past due and still accruing interest		$ 0		$ 0
New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	3,116,615		3,061,352
Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,280,114		1,183,118
Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		17,872		17,524
Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	15,591		15,923
Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		2,281		1,601
30-59 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		3,226		2,241
30-59 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	2,494		1,869
30-59 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		732		372
60-89 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,397		1,931
60-89 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	1,215		1,404
60-89 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		182		527
90+ Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		13,249		13,352
90+ Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	11,882		12,650
90+ Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,367		702
Current [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		4,378,857		4,226,946
Current [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	3,101,024		3,045,429
Current [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,277,833		1,181,517
Commercial [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		204,679		212,492
Commercial [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		183,635	[2]	193,707
Commercial [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		21,044		18,785
Commercial [Member] | Commercial Real Estate [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		168,069		167,441
Commercial [Member] | Commercial Real Estate [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	147,557	[2]	148,775
Commercial [Member] | Commercial Real Estate [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		20,512		18,666
Commercial [Member] | Commercial Real Estate [Member] | Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		304		481
Commercial [Member] | Commercial Real Estate [Member] | Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	304		481
Commercial [Member] | Commercial Real Estate [Member] | Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Commercial Real Estate [Member] | 30-59 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		241		125
Commercial [Member] | Commercial Real Estate [Member] | 30-59 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	241		125
Commercial [Member] | Commercial Real Estate [Member] | 30-59 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		77
Commercial [Member] | Commercial Real Estate [Member] | 60-89 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	0		77
Commercial [Member] | Commercial Real Estate [Member] | 60-89 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Commercial Real Estate [Member] | 90+ Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		63		279
Commercial [Member] | Commercial Real Estate [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	63		279
Commercial [Member] | Commercial Real Estate [Member] | 90+ Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Commercial Real Estate [Member] | Current [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		167,765		166,960
Commercial [Member] | Commercial Real Estate [Member] | Current [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	147,253		148,294
Commercial [Member] | Commercial Real Estate [Member] | Current [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		20,512		18,666
Commercial [Member] | Other [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		36,610		45,051
Commercial [Member] | Other [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	36,078	[2]	44,932
Commercial [Member] | Other [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		532		119
Commercial [Member] | Other [Member] | Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		40		80
Commercial [Member] | Other [Member] | Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	40		80
Commercial [Member] | Other [Member] | Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Other [Member] | 30-59 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Other [Member] | 30-59 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	0		0
Commercial [Member] | Other [Member] | 30-59 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Other [Member] | 60-89 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Other [Member] | 60-89 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	0		0
Commercial [Member] | Other [Member] | 60-89 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		40		80
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	40		80
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Commercial [Member] | Other [Member] | Current [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		36,570		44,971
Commercial [Member] | Other [Member] | Current [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	36,038		44,852
Commercial [Member] | Other [Member] | Current [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		532		119
Real Estate Mortgage - 1 to 4 Family [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		4,182,599		4,022,361
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		3,887,956		3,705,696
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	2,698,870		2,606,781
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,189,086		1,098,915
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		15,440		14,666
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	13,409		13,129
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		2,031		1,537
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 30-59 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		2,284		1,585
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 30-59 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	1,802		1,220
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 30-59 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		482		365
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 60-89 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,342		1,499
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 60-89 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	1,160		982
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 60-89 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		182		517
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 90+ Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		11,814		11,582
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	10,447		10,927
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 90+ Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,367		655
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Current [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		3,872,516		3,691,030
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Current [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	2,685,461		2,593,652
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Current [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,187,055		1,097,378
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		63,329		74,471
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	49,492		59,400
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		13,837		15,071
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		232		216
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	187		169
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		45		47
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 30-59 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		45		120
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 30-59 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	0		120
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 30-59 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		45		0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 60-89 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		1
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 60-89 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	0		1
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 60-89 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 90+ Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		187		95
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	187		48
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 90+ Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		47
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Current [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		63,097		74,255
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Current [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	49,305		59,231
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Current [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		13,792		15,024
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		231,314		242,194
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	177,240		193,654
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		54,074		48,540
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,802		2,018
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	1,616		2,018
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		186		0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 30-59 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		632		401
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 30-59 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	446		401
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 30-59 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		186		0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 60-89 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		25		344
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 60-89 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	25		344
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 60-89 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 90+ Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		1,145		1,273
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	1,145		1,273
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 90+ Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Current [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		229,512		240,176
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Current [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	175,624		191,636
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Current [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		53,888		48,540
Installment [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		9,451		9,617
Installment [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	7,378		7,810
Installment [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		2,073		1,807
Installment [Member] | Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		54		63
Installment [Member] | Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	35		46
Installment [Member] | Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		19		17
Installment [Member] | 30-59 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		24		10
Installment [Member] | 30-59 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	5		3
Installment [Member] | 30-59 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		19		7
Installment [Member] | 60-89 Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		30		10
Installment [Member] | 60-89 Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	30		0
Installment [Member] | 60-89 Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		10
Installment [Member] | 90+ Days Past Due [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		43
Installment [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	0		43
Installment [Member] | 90+ Days Past Due [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		0		0
Installment [Member] | Current [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		9,397		9,554
Installment [Member] | Current [Member] | New York and Other States [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans	[1]	7,343		7,764
Installment [Member] | Current [Member] | Florida [Member]
Aging of the recorded investment in past due loans [Abstract]
Recorded Past Due loans		$ 2,054		$ 1,790
[1]	Includes New York, New Jersey, Vermont and Massachusetts.
[2]	Includes New York, New Jersey and Massachusetts.

Loans and Allowance for Loan _6

Loans and Allowance for Loan Losses, Allowance for Loan Losses (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period		$ 50,155	$ 48,144	$ 49,595	$ 44,317
Loans charged off [Abstract]
Total loan charge offs		120	85	236	376
Recoveries of loans previously charged off [Abstract]
Total recoveries		115	64	441	182
Net loans (recoveries) charged off		5	21	(205)	194
(Credit) provision for loan losses		(2,800)	1,000	(2,450)	5,000
Balance at end of period		47,350	49,123	47,350	49,123
New York and Other States [Member]
Loans charged off [Abstract]
Total loan charge offs	[1]	119	85	233	357
Recoveries of loans previously charged off [Abstract]
Total recoveries	[1]	114	64	439	180
Florida [Member]
Loans charged off [Abstract]
Total loan charge offs		1	0	3	19
Recoveries of loans previously charged off [Abstract]
Total recoveries		1	0	2	2
Commercial [Member]
Allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period		4,106	4,366	4,140	3,999
Loans charged off [Abstract]
Total loan charge offs		30	0	30	3
Recoveries of loans previously charged off [Abstract]
Total recoveries		0	1	32	9
Net loans (recoveries) charged off		30	(1)	(2)	(6)
(Credit) provision for loan losses		(823)	(100)	(889)	262
Balance at end of period		3,253	4,267	3,253	4,267
Commercial [Member] | New York and Other States [Member]
Loans charged off [Abstract]
Total loan charge offs	[1]	30	0	30	3
Recoveries of loans previously charged off [Abstract]
Total recoveries	[1]	0	1	32	9
Commercial [Member] | Florida [Member]
Loans charged off [Abstract]
Total loan charge offs		0	0	0	0
Recoveries of loans previously charged off [Abstract]
Total recoveries		0	0	0	0
Real Estate Mortgage - 1 to 4 Family [Member]
Allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period		45,617	43,274	44,950	39,748
Loans charged off [Abstract]
Total loan charge offs		73	64	179	277
Recoveries of loans previously charged off [Abstract]
Total recoveries		112	60	357	162
Net loans (recoveries) charged off		(39)	4	(178)	115
(Credit) provision for loan losses		(2,003)	1,053	(1,475)	4,690
Balance at end of period		43,653	44,323	43,653	44,323
Real Estate Mortgage - 1 to 4 Family [Member] | New York and Other States [Member]
Loans charged off [Abstract]
Total loan charge offs	[1]	72	64	178	277
Recoveries of loans previously charged off [Abstract]
Total recoveries	[1]	111	60	355	160
Real Estate Mortgage - 1 to 4 Family [Member] | Florida [Member]
Loans charged off [Abstract]
Total loan charge offs		1	0	1	0
Recoveries of loans previously charged off [Abstract]
Total recoveries		1	0	2	2
Installment [Member]
Allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period		432	504	505	570
Loans charged off [Abstract]
Total loan charge offs		17	21	27	96
Recoveries of loans previously charged off [Abstract]
Total recoveries		3	3	52	11
Net loans (recoveries) charged off		14	18	(25)	85
(Credit) provision for loan losses		26	47	(86)	48
Balance at end of period		444	533	444	533
Installment [Member] | New York and Other States [Member]
Loans charged off [Abstract]
Total loan charge offs	[1]	17	21	25	77
Recoveries of loans previously charged off [Abstract]
Total recoveries	[1]	3	3	52	11
Installment [Member] | Florida [Member]
Loans charged off [Abstract]
Total loan charge offs		0	0	2	19
Recoveries of loans previously charged off [Abstract]
Total recoveries		$ 0	$ 0	$ 0	$ 0
[1]	Includes New York, New Jersey, Vermont and Massachusetts.

Loans and Allowance for Loan _7

Loans and Allowance for Loan Losses, Based on Impairment Review Method (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment	$ 0		$ 0
Collectively evaluated for impairment	47,350		49,595
Total ending allowance balance	47,350	$ 50,155	49,595	$ 49,123	$ 48,144	$ 44,317
Loans [Abstract]
Individually evaluated for impairment	19,813		21,581
Collectively evaluated for impairment	4,376,916		4,222,889
Total loans	4,396,729		4,244,470
Commercial [Member]
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	3,253		4,140
Total ending allowance balance	3,253	4,106	4,140	4,267	4,366	3,999
Loans [Abstract]
Individually evaluated for impairment	521		1,028
Collectively evaluated for impairment	204,158		211,464
Total loans	204,679		212,492
1 to 4 Family Residential Real Estate [Member]
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	43,653		44,950
Total ending allowance balance	43,653	45,617	44,950	44,323	43,274	39,748
Loans [Abstract]
Individually evaluated for impairment	19,292		20,553
Collectively evaluated for impairment	4,163,307		4,001,808
Total loans	4,182,599		4,022,361
Installment [Member]
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	444		505
Total ending allowance balance	444	$ 432	505	$ 533	$ 504	$ 570
Loans [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	9,451		9,617
Total loans	$ 9,451		$ 9,617

Loans and Allowance for Loan _8

Loans and Allowance for Loan Losses, Impaired Receivables (Details) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended
		Sep. 30, 2021		Dec. 31, 2020
Impaired loans by loans class [Abstract]
Recorded Investment		$ 19,813		$ 21,581
Unpaid Principal Balance		20,351		22,253
Related Allowance		0		0
Average Recorded Investment		20,744		20,814
New York and Other States [Member]
Impaired loans by loans class [Abstract]
Recorded Investment	[1]	16,940		18,331
Unpaid Principal Balance	[1]	17,478		19,003
Related Allowance	[1]	0		0
Average Recorded Investment	[1]	17,815		17,892
Florida [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		2,873		3,250
Unpaid Principal Balance		2,873		3,250
Related Allowance		0		0
Average Recorded Investment		2,929		2,922
Commercial [Member] | Commercial Real Estate [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		481		917
Unpaid Principal Balance		573		1,041
Related Allowance		0		0
Average Recorded Investment		1,252		1,291
Commercial [Member] | Commercial Real Estate [Member] | New York and Other States [Member]
Impaired loans by loans class [Abstract]
Recorded Investment	[1]	388		819
Unpaid Principal Balance	[1]	480		943
Related Allowance	[1]	0		0
Average Recorded Investment	[1]	1,147		1,186
Commercial [Member] | Commercial Real Estate [Member] | Florida [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		93		98
Unpaid Principal Balance		93	[1]	98
Related Allowance		0		0
Average Recorded Investment		105		105
Commercial [Member] | Other [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		40		111
Unpaid Principal Balance		40		111
Related Allowance		0		0
Average Recorded Investment		108		103
Commercial [Member] | Other [Member] | New York and Other States [Member]
Impaired loans by loans class [Abstract]
Recorded Investment	[1]	40		111
Unpaid Principal Balance	[1]	40		111
Related Allowance	[1]	0		0
Average Recorded Investment	[1]	108		103
Commercial [Member] | Other [Member] | Florida [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		0		0
Unpaid Principal Balance		0	[1]	0
Related Allowance		0		0
Average Recorded Investment		0		0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		16,858		17,932
Unpaid Principal Balance		17,164		18,319
Related Allowance		0		0
Average Recorded Investment		16,633		16,665
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | New York and Other States [Member]
Impaired loans by loans class [Abstract]
Recorded Investment	[1]	14,261		15,024
Unpaid Principal Balance	[1]	14,567		15,411
Related Allowance	[1]	0		0
Average Recorded Investment	[1]	14,070		14,110
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Florida [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		2,597		2,908
Unpaid Principal Balance		2,597		2,908
Related Allowance		0		0
Average Recorded Investment		2,563		2,555
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		199		219
Unpaid Principal Balance		199		240
Related Allowance		0		0
Average Recorded Investment		250		251
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | New York and Other States [Member]
Impaired loans by loans class [Abstract]
Recorded Investment	[1]	199		219
Unpaid Principal Balance	[1]	199		240
Related Allowance	[1]	0		0
Average Recorded Investment	[1]	235		235
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Florida [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		0		0
Unpaid Principal Balance		0		0
Related Allowance		0		0
Average Recorded Investment		15		16
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		2,235		2,402
Unpaid Principal Balance		2,375		2,542
Related Allowance		0		0
Average Recorded Investment		2,501		2,504
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | New York and Other States [Member]
Impaired loans by loans class [Abstract]
Recorded Investment	[1]	2,052		2,158
Unpaid Principal Balance	[1]	2,192		2,298
Related Allowance	[1]	0		0
Average Recorded Investment	[1]	2,255		2,258
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Florida [Member]
Impaired loans by loans class [Abstract]
Recorded Investment		183		244
Unpaid Principal Balance		183		244
Related Allowance		0		0
Average Recorded Investment		$ 246		$ 246
[1]	Includes New York, New Jersey, Vermont and Massachusetts.

Loans and Allowance for Loan _9

Loans and Allowance for Loan Losses, Troubled Debt Restructurings (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021USD ($)Contract	Sep. 30, 2020USD ($)Contract	Sep. 30, 2021USD ($)Contract	Sep. 30, 2020USD ($)Contract	Dec. 31, 2020USD ($)
Financing Receivable Modifications Information [Abstract]
TDR's classifications from previously performing loans		$ 10,900		$ 10,900		$ 11,700
New York and Other States [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract	[1]	3	8	8	13
Pre-Modification Outstanding Recorded Investment	[1]	$ 588	$ 1,709	$ 1,013	$ 2,277
Post-Modification Outstanding Recorded Investment	[1]	$ 588	$ 1,709	$ 1,013	$ 2,277
Florida [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract		0	0	1	4
Pre-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 78	$ 589
Post-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 78	$ 589
Commercial [Member] | Commercial Real Estate [Member] | New York and Other States [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract	[1]	0	1	0	1
Pre-Modification Outstanding Recorded Investment	[1]	$ 0	$ 126	$ 0	$ 126
Post-Modification Outstanding Recorded Investment	[1]	$ 0	$ 126	$ 0	$ 126
Commercial [Member] | Commercial Real Estate [Member] | Florida [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract		0	0	0	0
Pre-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 0	$ 0
Post-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 0	$ 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | New York and Other States [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract	[1]	2	6	4	9
Pre-Modification Outstanding Recorded Investment	[1]	$ 557	$ 1,533	$ 923	$ 1,982
Post-Modification Outstanding Recorded Investment	[1]	$ 557	$ 1,533	$ 923	$ 1,982
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Florida [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract		0	0	1	4
Pre-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 78	$ 589
Post-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 78	$ 589
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | New York and Other States [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract	[1]	0	0	1	0
Pre-Modification Outstanding Recorded Investment	[1]	$ 0	$ 0	$ 2	$ 0
Post-Modification Outstanding Recorded Investment	[1]	$ 0	$ 0	$ 2	$ 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Florida [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract		0	0	0	0
Pre-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 0	$ 0
Post-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 0	$ 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | New York and Other States [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract	[1]	1	1	3	3
Pre-Modification Outstanding Recorded Investment	[1]	$ 31	$ 50	$ 88	$ 169
Post-Modification Outstanding Recorded Investment	[1]	$ 31	$ 50	$ 88	$ 169
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Florida [Member]
Modified loans by class determined to be TDR's [Abstract]
Number of Contracts | Contract		0	0	0	0
Pre-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 0	$ 0
Post-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 0	$ 0
[1]	Includes New York, New Jersey, Vermont and Massachusetts.

Loans and Allowance for Loan_10

Loans and Allowance for Loan Losses, Modified Loans Payment Status (Details) $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2021USD ($)Contract		Sep. 30, 2020USD ($)Contract		Sep. 30, 2021USD ($)Contract		Sep. 30, 2020USD ($)Contract
Loans and Allowance for Loan Losses [Abstract]
Deferral period of chapter 13 bankruptcies						60 months
Number of days past due when loans are considered to be in payment default						90 days
Contractual past due period for loans to be in payment default						30 days
New York and Other States [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0	[1]	4	[1]	0	[2]	5	[2]
Recorded Investment | $		$ 0	[1]	$ 283	[1]	$ 0	[2]	$ 478	[2]
Florida [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0		0		0		0
Recorded Investment | $		$ 0		$ 0		$ 0		$ 0
Commercial [Member] | Commercial Real Estate [Member] | New York and Other States [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0	[1]	0	[1]	0	[2]	0	[2]
Recorded Investment | $		$ 0	[1]	$ 0	[1]	$ 0	[2]	$ 0	[2]
Commercial [Member] | Commercial Real Estate [Member] | Florida [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0		0		0		0
Recorded Investment | $		$ 0		$ 0		$ 0		$ 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | New York and Other States [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0	[1]	3	[1]	0	[2]	4	[2]
Recorded Investment | $		$ 0	[1]	$ 264	[1]	$ 0	[2]	$ 459	[2]
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Florida [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0		0		0		0
Recorded Investment | $		$ 0		$ 0		$ 0		$ 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | New York and Other States [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract	[2]					0		0
Recorded Investment | $	[2]					$ 0		$ 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Florida [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0		0
Recorded Investment | $		$ 0		$ 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | New York and Other States [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0	[1]	1	[1]	0	[2]	1	[2]
Recorded Investment | $		$ 0	[1]	$ 19	[1]	$ 0	[2]	$ 19	[2]
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Florida [Member]
Loans modified for which there was payment default [Abstract]
Number of Contracts | Contract		0		0		0		0
Recorded Investment | $		$ 0		$ 0		$ 0		$ 0
[1]	Includes New York, New Jersey, Vermont and Massachusetts.
[2]	* Includes New York, New Jersey, Vermont and Massachusetts.

Loans and Allowance for Loan_11

Loans and Allowance for Loan Losses, Risk Category of Loans (Details) - USD ($) $ in Thousands		Sep. 30, 2021		Dec. 31, 2020
Loans and Leases Receivable [Abstract]
Total loans, net		$ 4,396,729		$ 4,244,470
Impaired loans included in classified loans		297		796
New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	3,116,615		3,061,352
Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		1,280,114		1,183,118
Commercial [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		204,679		212,492
Commercial [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		183,635	[2]	193,707
Commercial [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		21,044		18,785
Commercial [Member] | Pass [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		201,802		208,474
Commercial [Member] | Pass [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		181,313	[2]	190,263
Commercial [Member] | Pass [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		20,489		18,211
Commercial [Member] | Classified [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		2,877		4,018
Commercial [Member] | Classified [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		2,322	[2]	3,444
Commercial [Member] | Classified [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		555		574
Commercial [Member] | Commercial Real Estate [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		168,069		167,441
Commercial [Member] | Commercial Real Estate [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	147,557	[2]	148,775
Commercial [Member] | Commercial Real Estate [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		20,512		18,666
Commercial [Member] | Commercial Real Estate [Member] | Pass [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		165,357		163,833
Commercial [Member] | Commercial Real Estate [Member] | Pass [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		145,400	[2]	145,741
Commercial [Member] | Commercial Real Estate [Member] | Pass [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		19,957		18,092
Commercial [Member] | Commercial Real Estate [Member] | Classified [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		2,712		3,608
Commercial [Member] | Commercial Real Estate [Member] | Classified [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		2,157	[2]	3,034
Commercial [Member] | Commercial Real Estate [Member] | Classified [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		555		574
Commercial [Member] | Other [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		36,610		45,051
Commercial [Member] | Other [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net	[1]	36,078	[2]	44,932
Commercial [Member] | Other [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		532		119
Commercial [Member] | Other [Member] | Pass [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		36,445		44,641
Commercial [Member] | Other [Member] | Pass [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		35,913	[2]	44,522
Commercial [Member] | Other [Member] | Pass [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		532		119
Commercial [Member] | Other [Member] | Classified [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		165		410
Commercial [Member] | Other [Member] | Classified [Member] | New York and Other States [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		165	[2]	410
Commercial [Member] | Other [Member] | Classified [Member] | Florida [Member]
Loans and Leases Receivable [Abstract]
Total loans, net		$ 0		$ 0
[1]	Includes New York, New Jersey, Vermont and Massachusetts.
[2]	Includes New York, New Jersey and Massachusetts.

Fair Value of Financial Instr_3

Fair Value of Financial Instruments, Assets and Liabilities Measured at Fair Value Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Securities available for sale [Abstract]
Fair Value	$ 434,552	$ 439,071
Fair value assets transfers from Level 1 to Level 2	0		$ 0
Fair value assets transfers from Level 2 to Level 1	0		$ 0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale [Abstract]
Fair Value	0	0
Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale [Abstract]
Fair Value	434,552	439,071
Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale [Abstract]
Fair Value	0	0
Carrying Value [Member]
Securities available for sale [Abstract]
Fair Value	434,552	439,071
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale [Abstract]
U.S. government sponsored enterprises	0	0
State and political subdivisions	0	0
Mortgage backed securities and collateralized mortgage obligations - residential	0	0
Corporate bonds	0	0
Small Business Administration - guaranteed participation securities	0	0
Other securities	0	0
Fair Value	0	0
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale [Abstract]
U.S. government sponsored enterprises	59,749	19,968
State and political subdivisions	48	103
Mortgage backed securities and collateralized mortgage obligations - residential	293,585	316,158
Corporate bonds	45,915	59,939
Small Business Administration - guaranteed participation securities	34,569	42,217
Other securities	686	686
Fair Value	434,552	439,071
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale [Abstract]
U.S. government sponsored enterprises	0	0
State and political subdivisions	0	0
Mortgage backed securities and collateralized mortgage obligations - residential	0	0
Corporate bonds	0	0
Small Business Administration - guaranteed participation securities	0	0
Other securities	0	0
Fair Value	0	0
Recurring [Member] | Carrying Value [Member]
Securities available for sale [Abstract]
U.S. government sponsored enterprises	59,749	19,968
State and political subdivisions	48	103
Mortgage backed securities and collateralized mortgage obligations - residential	293,585	316,158
Corporate bonds	45,915	59,939
Small Business Administration - guaranteed participation securities	34,569	42,217
Other securities	686	686
Fair Value	$ 434,552	$ 439,071

Fair Value of Financial Instr_4

Fair Value of Financial Instruments, Assets and Liabilities Measured at Fair Value Non-recurring Basis (Details) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Assets measured at fair value on a non-recurring basis [Abstract]
Other real estate owned, Valuation Technique [Extensible List]	Sales Comparison Approach [Member]	Sales Comparison Approach [Member]	Sales Comparison Approach [Member]
Other real estate owned, Measurement Input [Extensible List]	Adjustments for Differences Between Comparable Sales [Member]	Adjustments for Differences Between Comparable Sales [Member]	Adjustments for Differences Between Comparable Sales [Member]
Impaired loans [Abstract]
Other real estate owned, commercial real estate	$ 0	$ 0
Valuation charge on other real estate owned	0	121	$ 120
Impaired loans	19,813	19,813	21,581
Collateral dependent impaired loans	0	0	211
Valuation allowance	0	0	0
Gross charge offs, residential impaired loans	0	0	10
Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Other real estate owned	0	0	0
Impaired loans [Abstract]
Real estate mortgage - 1 to 4 family	0	0	0
Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Other real estate owned	0	0	0
Impaired loans [Abstract]
Real estate mortgage - 1 to 4 family	0	0	0
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Other real estate owned	511	511	541
Impaired loans [Abstract]
Real estate mortgage - 1 to 4 family	$ 0	$ 0	$ 211
Nonrecurring [Member] | Other Real Estate Owned [Member] | Minimum [Member] | Sales Comparison Approach [Member] | Adjustments for Differences Between Comparable Sales [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Other real estate owned, unobservable inputs	0.03	0.03	0.01
Nonrecurring [Member] | Other Real Estate Owned [Member] | Maximum [Member] | Sales Comparison Approach [Member] | Adjustments for Differences Between Comparable Sales [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Other real estate owned, unobservable inputs	0.21	0.21	0.07
Nonrecurring [Member] | Other Real Estate Owned [Member] | Weighted Average [Member] | Sales Comparison Approach [Member] | Adjustments for Differences Between Comparable Sales [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Other real estate owned, unobservable inputs	0.10	0.10	0.02
Nonrecurring [Member] | Real Estate Mortgage - 1 to 4 Family [Member] | Minimum [Member] | Sales Comparison Approach [Member] | Adjustments for Differences Between Comparable Sales [Member]
Impaired loans [Abstract]
Impaired loans, unobservable inputs			0.11
Nonrecurring [Member] | Real Estate Mortgage - 1 to 4 Family [Member] | Maximum [Member] | Sales Comparison Approach [Member] | Adjustments for Differences Between Comparable Sales [Member]
Impaired loans [Abstract]
Impaired loans, unobservable inputs			0.12
Nonrecurring [Member] | Real Estate Mortgage - 1 to 4 Family [Member] | Weighted Average [Member] | Sales Comparison Approach [Member] | Adjustments for Differences Between Comparable Sales [Member]
Impaired loans [Abstract]
Impaired loans, unobservable inputs			0.12
Nonrecurring [Member] | Carrying Value [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Other real estate owned	$ 511	$ 511	$ 541
Impaired loans [Abstract]
Real estate mortgage - 1 to 4 family	$ 0	$ 0	$ 211

Fair Value of Financial Instr_5

Fair Value of Financial Instruments, Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financial assets [Abstract]
Cash and cash equivalents	$ 1,193,339	$ 1,107,099
Securities available for sale	434,552	439,071
Held to maturity securities	11,646	14,988
Net loans	4,419,921	4,287,585
Accrued interest receivable	9,358	10,031
Financial liabilities [Abstract]
Demand deposits	790,663	652,756
Interest bearing deposits	4,449,708	4,386,439
Short-term borrowings	230,770	214,755
Accrued interest payable	225	474
Level 1 [Member]
Financial assets [Abstract]
Cash and cash equivalents	1,193,339	1,107,099
Securities available for sale	0	0
Held to maturity securities	0	0
Net loans	0	0
Accrued interest receivable	37	39
Financial liabilities [Abstract]
Demand deposits	790,663	652,756
Interest bearing deposits	3,325,774	3,088,064
Short-term borrowings	0	0
Accrued interest payable	30	68
Level 2 [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
Securities available for sale	434,552	439,071
Held to maturity securities	11,646	14,988
Net loans	0	0
Accrued interest receivable	1,042	1,458
Financial liabilities [Abstract]
Demand deposits	0	0
Interest bearing deposits	1,123,934	1,298,375
Short-term borrowings	230,770	214,755
Accrued interest payable	195	406
Level 3 [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
Securities available for sale	0	0
Held to maturity securities	0	0
Net loans	4,419,921	4,287,585
Accrued interest receivable	8,279	8,534
Financial liabilities [Abstract]
Demand deposits	0	0
Interest bearing deposits	0	0
Short-term borrowings	0	0
Accrued interest payable	0	0
Carrying Value [Member]
Financial assets [Abstract]
Cash and cash equivalents	1,193,339	1,107,099
Securities available for sale	434,552	439,071
Held to maturity securities	10,701	13,824
Federal Reserve Bank and Federal Home Loan Bank stock	5,604	5,506
Net loans	4,349,379	4,194,875
Accrued interest receivable	9,358	10,031
Financial liabilities [Abstract]
Demand deposits	790,663	652,756
Interest bearing deposits	4,450,355	4,384,437
Short-term borrowings	230,770	214,755
Accrued interest payable	$ 225	$ 474

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss) Income Balances, Net of Tax (Details) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance	[1]	$ 578,593	$ 571,031	$ 568,161	$ 553,421	$ 548,185	$ 538,257	$ 568,161	$ 538,257
Other comprehensive income (loss) - before reclassifications		(566)			(198)			(4,405)	8,432
Amount reclassified from accumulated other comprehensive income		30			(201)			(227)	(1,356)
Other comprehensive (loss) income, net of tax		(536)	572	(4,668)	(399)	544	6,931	(4,632)	7,076
Balance	[1]	586,683	578,593	571,031	560,528	553,421	548,185	586,683	560,528
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance	[1]	7,840	7,268	11,936	11,936	11,392	4,461	11,936	4,461
Other comprehensive (loss) income, net of tax		(536)	572	(4,668)	(399)	544	6,931
Balance	[1]	7,304	7,840	7,268	11,537	11,936	11,392	7,304	11,537
Net Unrealized Holding (Gain) Loss on Securities Available for Sale, Net of Tax [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance		3,347		7,186	8,061		286	7,186	286
Other comprehensive income (loss) - before reclassifications		(566)			(198)			(4,405)	8,432
Amount reclassified from accumulated other comprehensive income		0			0			0	(855)
Other comprehensive (loss) income, net of tax		(566)			(198)			(4,405)	7,577
Balance		2,781	3,347		7,863	8,061		2,781	7,863
Net Change in Overfunded Position in Pension and Postretirement Plans Arising During the Year, Net of Tax [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance		6,084		6,084	4,840		4,840	6,084	4,840
Other comprehensive income (loss) - before reclassifications		0			0			0	0
Amount reclassified from accumulated other comprehensive income		0			0			0	0
Other comprehensive (loss) income, net of tax		0			0			0	0
Balance		6,084	6,084		4,840	4,840		6,084	4,840
Net Change in Net Actuarial (Gain) Loss and Prior Service Credit on Pension and Postretirement Benefit Plans, Net of Tax [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance		(1,591)		$ (1,334)	(965)		$ (665)	(1,334)	(665)
Other comprehensive income (loss) - before reclassifications		0			0			0	0
Amount reclassified from accumulated other comprehensive income		30			(201)			(227)	(501)
Other comprehensive (loss) income, net of tax		30			(201)			(227)	(501)
Balance		$ (1,561)	$ (1,591)		$ (1,166)	$ (965)		$ (1,561)	$ (1,166)
[1]	All periods presented have been adjusted for the 1 for 5

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss), Reclassifications out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Abstract]
Net gain on securities transactions	[1]	$ 0			$ 0			$ 0	$ 1,155
Salaries and employee benefits		11,909			10,899			36,737	33,920
Income tax effect		5,523			4,761			15,227	12,988
Net income		16,762	$ 14,433	$ 14,083	14,071	$ 11,254	$ 13,313	45,278	38,638
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Abstract]
Net income		(30)			201			227	1,356
Unrealized Gains on Securities Available for Sale [Member] | Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Abstract]
Net gain on securities transactions		0			0			0	1,155
Income tax effect		0			0			0	(300)
Net income		0			0			0	855
Amortization of Pension and Postretirement Benefit Items [Member] | Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Abstract]
Income tax effect		10			(70)			(80)	(177)
Net income		(30)			201			227	501
Amortization of Net Actuarial Gain [Member] | Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Abstract]
Salaries and employee benefits		137			222			534	531
Amortization of Prior Service (Cost) Credit [Member] | Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Abstract]
Salaries and employee benefits		$ (177)			$ 49			$ (227)	$ 147
[1]	Not within the scope of ASC 606.

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Sources of non-interest income [Abstract]
Net gain on securities transactions	[1]	$ 0	$ 0	$ 0	$ 1,155
Other	[1]	154	419	513	1,043
Total non-interest income		4,295	4,341	13,411	13,101
Overdraft Fees [Member]
Sources of non-interest income [Abstract]
Non-interest income		735	595	1,964	1,920
Other [Member]
Sources of non-interest income [Abstract]
Non-interest income		518	348	1,479	1,159
Interchange Income [Member]
Sources of non-interest income [Abstract]
Non-interest income		1,330	1,195	3,863	3,072
Wealth Management Fees [Member]
Sources of non-interest income [Abstract]
Non-interest income		$ 1,558	$ 1,784	$ 5,592	$ 4,752
[1]	Not within the scope of ASC 606.

Operating Leases (Details)

Operating Leases (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021USD ($)PropertyLease	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)PropertyLease	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)
Leases, operating [Abstract]
Number of lease for which construction not started | Lease		1		1
Other information related to leases [Abstract]
Operating lease cost		$ 2,010	$ 1,966	$ 6,029	$ 5,893
Variable lease cost		499	369	1,508	1,524
Total Lease costs		$ 2,509	$ 2,335	7,537	7,417
Cash paid for amounts included in the measurement of lease liabilities [Abstract]
Operating cash flows from operating leases				6,121	6,022
Right-of-use assets obtained in exchange for lease obligations:				$ 2,696	$ 287
Weighted average remaining lease term		8 years 8 months 12 days	8 years 10 months 24 days	8 years 8 months 12 days	8 years 10 months 24 days
Weighted average discount rate		3.07%	3.25%	3.07%	3.25%
Future minimum lease payments under non-cancellable leases [Abstract]
2021	[1]	$ 2,072		$ 2,072
2022		8,014		8,014
2023		7,719		7,719
2024		7,595		7,595
2025		7,223		7,223
Thereafter		25,291		25,291
Total lease payments		57,914		57,914
Less: Interest		7,399		7,399
Present value of lease liabilities		50,515		50,515		$ 52,784
Director [Member]
Future minimum lease payments under non-cancellable leases [Abstract]
Total lease payments		3,700		3,700
Less: Interest		$ 525		$ 525
Number of Properties Under Lease Owned by Related Party | Property		5		5
Minimum [Member]
Leases, operating [Abstract]
Operating lease expiration term		5 months		5 months
Maximum [Member]
Leases, operating [Abstract]
Operating lease expiration term		23 years		23 years
[1]	Excluding the nine months ended September 30, 2021.

Regulatory Capital Requiremen_3

Regulatory Capital Requirements (Details) $ in Thousands		Sep. 30, 2021USD ($)Classification	Dec. 31, 2020USD ($)
Trustco Bank [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations Information [Abstract]
Number of classifications for prompt corrective action regulations provide | Classification		5
Tier One Risk Based Capital [Abstract]
Tier 1 leverage capital		$ 561,969	$ 539,897
Common equity Tier 1 capital		561,969	539,897
Tier 1 risk-based capital		561,969	539,897
Total risk-based capital		$ 599,265	$ 576,257
Risk Based Ratios [Abstract]
Tier 1 leverage ratio, ratio		0.09148	0.09378
Common equity Tier 1 capital, ratio		0.18899	0.18646
Tier 1 risk-based capital, ratio		0.18899	0.18646
Total risk-based capital, ratio		0.20153	0.19902
Leverage Ratios [Abstract]
Tier 1 leverage ratio, well capitalized	[1]	0.05000	0.05000
Tier 1 leverage ratio, minimum for capital adequacy plus capital conservation	[1],[2]	0.04000	0.04000
Common equity Tier 1 capital, well capitalized	[1]	0.06500	0.06500
Common equity Tier 1 capital, minimum for capital adequacy plus capital conservation	[1],[2]	0.07000	0.07000
Tier 1 risk-based capital, well capitalized	[1]	0.08000	0.08000
Tier 1 risk-based capital, minimum for capital adequacy plus capital conservation	[1],[2]	0.08500	0.08500
Total risk-based capital, well capitalized	[1]	0.10000	0.10000
Total risk-based capital, minimum for capital adequacy plus capital conservation	[1],[2]	0.10500	0.10500
Capital Conservation Buffer [Abstract]
Common equity Tier 1 capital conservation buffer		0.0250	0.0250
Tier 1 risk based capital ratio, capital conservation buffer		0.0250	0.0250
Total risk based capital ratio, capital conservation buffer		0.0250	0.0250
TrustCo Bank Corp NY [Member]
Tier One Risk Based Capital [Abstract]
Tier 1 leverage capital		$ 578,825	$ 555,672
Common equity Tier 1 capital		578,825	555,672
Tier 1 risk-based capital		578,825	555,672
Total risk-based capital		$ 616,131	$ 592,040
Risk Based Ratios [Abstract]
Tier 1 leverage ratio, ratio		0.09420	0.09650
Common equity Tier 1 capital, ratio		0.19461	0.19187
Tier 1 risk-based capital, ratio		0.19461	0.19187
Total risk-based capital, ratio		0.20715	0.20443
Leverage Ratios [Abstract]
Tier 1 leverage ratio, minimum for capital adequacy plus capital conservation	[1],[2]	0.04000	0.04000
Common equity Tier 1 capital, minimum for capital adequacy plus capital conservation	[1],[2]	0.07000	0.07000
Tier 1 risk-based capital, minimum for capital adequacy plus capital conservation	[1],[2]	0.08500	0.08500
Total risk-based capital, minimum for capital adequacy plus capital conservation	[1],[2]	0.10500	0.10500
Capital Conservation Buffer [Abstract]
Common equity Tier 1 capital conservation buffer		0.0250	0.0250
Tier 1 risk based capital ratio, capital conservation buffer		0.0250	0.0250
Total risk based capital ratio, capital conservation buffer		0.0250	0.0250
[1]	Federal regulatory minimum requirements to be considered to be Well Capitalized and Adequately Capitalized
[2]	The September 30, 2021 and December 31, 2020 common equity tier 1, tier 1 risk-based, and total risk-based capital ratios include a capital conservation buffer of 2.50 percent

Risks and Uncertainties (Detail

Risks and Uncertainties (Details)	Mar. 16, 2020	Mar. 03, 2020
Risks and Uncertainties [Abstract]
Reduction in overnight federal funds rate	1.00%	0.50%